CVE-2025-14909VulnerabilityPublished 19 Dec 2025

CVE-2025-14909: JeecgBoot · Manage User Sessions

Affects JeecgBootSource CVE Database V5

Not known to be exploited · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 4.0 base score

5.3Medium

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

EPSS: 0.5% chance of exploitation in 30 days – higher than 42% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Base metrics

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: None
Vulnerable system confidentiality: None
Vulnerable system integrity: None
Vulnerable system availability: Low
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Threat metrics

Exploit Maturity: POC

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

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, 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: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: None: There is no loss of integrity within the Vulnerable System.
Vulnerable system availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the Vulnerable System are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.
Exploit Maturity: POC: Based on threat intelligence sources each of the following must apply: · Proof-of-concept is publicly available · No knowledge of reported attempts to exploit this vulnerability · No knowledge of publicly available solutions used to simplify attempts to exploit the vulnerability

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 19 Dec 2025
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 2026-10-26.

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 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

Affected software

Product	Affected	Fixed in
Mavenorg.jeecg/jeecgboot`pkg:maven/org.jeecg/jeecgboot`Other threats	Affected =3.0 =3.1 =3.2 =3.3 =3.4 =3.5 =3.6 =3.7 =3.8 =3.9.0	Fixed in–

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

AI-suggested

1. Immediately apply the official patch identified by commit b686f9fbd1917edffe5922c6362c817a9361cfbd to all affected JeecgBoot instances (versions 3.0 through 3.9.0). 2. Conduct a thorough audit of session management configurations and logs to detect any anomalous session manipulations or unauthorized access attempts. 3. Implement additional access controls and monitoring around the SysUserOnlineController endpoints to restrict access to trusted administrators only. 4. Employ network-level protections such as Web Application Firewalls (WAFs) to detect and block suspicious requests targeting session management functions. 5. Educate development and operations teams on secure session management best practices to prevent similar vulnerabilities. 6. Regularly update JeecgBoot and dependent components to the latest versions to benefit from security fixes. 7. Consider implementing multi-factor authentication and session timeout policies to reduce the impact of session manipulation. 8. Monitor threat intelligence sources for any emerging exploits or attack campaigns targeting this vulnerability.

Description

A weakness has been identified in JeecgBoot up to 3.9.0. The impacted element is the function SysUserOnlineController of the file jeecg-boot/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/system/controller/SysUserOnlineController.java. Executing manipulation can lead to manage user sessions. The attack can be launched remotely. The exploit has been made available to the public and could be exploited. This patch is called b686f9fbd1917edffe5922c6362c817a9361cfbd. Applying a patch is advised to resolve this issue.

Impact

For European organizations, this vulnerability poses a moderate risk to the security of user sessions in applications built on JeecgBoot. Exploitation could allow attackers to manipulate or terminate active user sessions, potentially leading to unauthorized access or denial of service conditions. This could disrupt business operations, especially for services relying on continuous user sessions or sensitive session data. Organizations in sectors such as finance, healthcare, and government, where session integrity is critical, may face increased risks. The lack of requirement for user interaction or high privileges lowers the barrier for exploitation, making it a viable threat if systems remain unpatched. Additionally, the availability of a public exploit increases the likelihood of targeted attacks. However, the medium severity and absence of known active exploitation suggest that immediate widespread impact is limited but should not be underestimated.

Summary

CVE-2025-14909 identifies a vulnerability in JeecgBoot, an open-source rapid development platform, specifically in the SysUserOnlineController class responsible for managing user sessions. The flaw exists in versions 3.0 through 3.9.0 and allows remote attackers with low privileges to manipulate active user sessions. The vulnerability arises from insufficient access control or validation in the session management functionality, enabling unauthorized session manipulation remotely without user interaction. This could allow attackers to forcibly log out users, hijack sessions, or disrupt session integrity. The vulnerability has a CVSS 4.0 score of 5.3, indicating medium severity, with an attack vector of network (remote), low attack complexity, no privileges required beyond low-level access, and no user interaction needed. Although no exploits have been observed in the wild, a public exploit is available, increasing the risk of exploitation. The issue is addressed by a patch identified as commit b686f9fbd1917edffe5922c6362c817a9361cfbd, which should be applied promptly to affected systems. The vulnerability impacts the confidentiality and integrity of user sessions and could lead to denial of service or unauthorized session control if exploited.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 26 Dec 2025, 04:26 UTC

Technical details

References

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