VulnerabilityPublished 3 Mar 2026Updated 5 Mar 2026

CVE-2025-70821: renren-secuity · SQL Injection

Affects renren-secuitySource CVE Database V5

Not known to be exploited · CVSS 9.8 Critical : upgrade to 5.5.0 as a priority.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score

9.8Critical

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.4% chance of exploitation in 30 days – higher than 35% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 5.5.0

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: High: There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 3 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade sorzs/renren-secuity to 5.5.0.

Affected software

Product	Affected	Fixed in
GitHubsorzs/renren-secuity`pkg:github/sorzs/renren-secuity`Other threats	Affected <5.5.0	Fixed in 5.5.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

To mitigate CVE-2025-70821, organizations should immediately identify all instances of renren-security in their environment and verify the version in use. Upgrading to version 5.5.0 or later, where the vulnerability is fixed, is the most effective mitigation. In the absence of an available patch, organizations should implement strict input validation and sanitization on all user inputs interacting with the BaseServiceImpl.java component. Employing parameterized queries or prepared statements can prevent SQL Injection by separating code from data. Additionally, database permissions should be minimized to restrict the impact of any potential injection. Monitoring database logs and network traffic for unusual queries or patterns indicative of SQL Injection attempts is recommended. Employing Web Application Firewalls (WAFs) with SQL Injection detection rules can provide an additional layer of defense. Regular security assessments and code reviews focusing on input handling should be conducted to prevent similar vulnerabilities.

Description

renren-secuity before v5.5.0 is vulnerable to SQL Injection in the BaseServiceImpl.java component

Impact

The impact of CVE-2025-70821 is severe for organizations worldwide using renren-security versions before 5.5.0. Successful exploitation allows attackers to execute arbitrary SQL commands remotely without authentication, potentially leading to unauthorized disclosure of sensitive data, data corruption, or deletion. This compromises confidentiality, integrity, and availability of critical systems and data. Organizations could face data breaches, regulatory penalties, loss of customer trust, and operational disruptions. The vulnerability could also be leveraged as a foothold for further attacks within a network. Given the critical CVSS score and ease of exploitation, the threat is significant for industries handling sensitive information such as finance, healthcare, government, and technology sectors. The absence of known exploits in the wild currently provides a window for proactive defense, but the risk of rapid weaponization remains high once details become widely known.

Summary

CVE-2025-70821 is a critical SQL Injection vulnerability identified in the renren-security software prior to version 5.5.0, specifically within the BaseServiceImpl.java component. The vulnerability arises from improper sanitization of user-supplied input, allowing attackers to inject malicious SQL statements directly into database queries. This flaw is categorized under CWE-89, which pertains to SQL Injection vulnerabilities. The CVSS v3.1 base score of 9.8 indicates a critical severity level, with an attack vector that is network-based (AV:N), requiring no privileges (PR:N) or user interaction (UI:N), and affecting confidentiality, integrity, and availability (C:H/I:H/A:H). The vulnerability is exploitable remotely without authentication, making it highly dangerous. Although no public exploits have been reported yet, the nature of SQL Injection vulnerabilities means that exploitation could lead to unauthorized data access, data modification, or complete system compromise. The lack of patch links suggests that a fix may be forthcoming or that users should upgrade to version 5.5.0 or later where the issue is resolved. The vulnerability's presence in a core service component indicates that many applications relying on renren-security could be affected. Organizations using this software should prioritize identifying affected versions and applying patches or mitigations promptly to prevent exploitation.

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #2OWASP Top 10 A05:2025: Injection (opens in a new tab)
The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Architecture and Design · Parameterization
If available, use structured mechanisms that automatically enforce the separation between data and code. These mechanisms may be able to provide the relevant quoting, encoding, and validation automatically, instead of relying on the developer to provide this capability at every point where output is generated.
Architecture and Design · Operation · Environment Hardening
Run your code using the lowest privileges that are required to accomplish the necessary tasks. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment.
OWASP Cheat Sheets
Query Parameterization (opens in a new tab)
Unvalidated Redirects and Forwards (opens in a new tab)
XML Security (opens in a new tab)
XML External Entity Prevention (opens in a new tab)
File Upload (opens in a new tab)
OWASP ASVS 4.0.3
V5.3.4 (opens in a new tab)
V5.3.5 (opens in a new tab)
V1.5.1 (opens in a new tab)
Attack patterns
Command Line Execution through SQL Injection (opens in a new tab)
Object Relational Mapping Injection (opens in a new tab)
SQL Injection through SOAP Parameter Tampering (opens in a new tab)
Expanding Control over the Operating System from the Database (opens in a new tab)
SQL Injection (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 10 Mar 2026, 17:07 UTC

WeaknessesCWE-89

Technical details

References

Community reviews

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