CVE-2026-2224VulnerabilityPublished 9 Feb 2026Updated 23 Feb 2026

CVE-2026-2224: code-projects Online Reviewer System · Cross Site Scripting

Affects code-projects Online Reviewer SystemSource CVE Database V5

Not known to be exploited · CVSS 5.1 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score

5.1Medium

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 13% 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:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

Base metrics

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: Passive
Vulnerable system confidentiality: None
Vulnerable system integrity: Low
Vulnerable system availability: None
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: Passive: Successful exploitation of this vulnerability requires limited interaction by the targeted user with the vulnerable system and the attacker’s payload. These interactions would be considered involuntary and do not require that the user actively subvert protections built into the vulnerable system.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact to the Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within 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 9 Feb 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 2026-10-25.

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
code-projectsOnline Reviewer System	Affected =1.0	Fixed in–

AI-suggested

To mitigate CVE-2026-2224, organizations should implement strict input validation and sanitization on the 'firstname' parameter and any other user-supplied inputs within the Online Reviewer System. Employ context-aware output encoding (e.g., HTML entity encoding) to prevent script injection in rendered pages. Deploy a web application firewall (WAF) with rules designed to detect and block XSS payloads targeting the affected endpoint. Conduct thorough code reviews and security testing to identify and remediate similar vulnerabilities in other parts of the application. If possible, isolate the affected system behind VPNs or restrict access to trusted users to reduce exposure. Educate users about the risks of clicking suspicious links or interacting with untrusted content to reduce the likelihood of successful exploitation. Monitor logs for unusual activity indicative of XSS attacks. Since no official patches are available, consider engaging with the vendor for updates or applying custom patches to sanitize inputs. Finally, implement Content Security Policy (CSP) headers to limit the impact of injected scripts.

Description

A vulnerability was detected in code-projects Online Reviewer System 1.0. This affects an unknown part of the file /system/system/admins/manage/users/btn_functions.php. The manipulation of the argument firstname results in cross site scripting. It is possible to launch the attack remotely. The exploit is now public and may be used.

Impact

The primary impact of CVE-2026-2224 is the potential execution of arbitrary scripts in users' browsers, which can lead to session hijacking, credential theft, unauthorized actions on behalf of users, or redirection to malicious websites. This can undermine user trust and lead to reputational damage for organizations using the affected software. Since the vulnerability requires user interaction, phishing or social engineering campaigns could be used to exploit it. The lack of authentication requirement broadens the attack surface, allowing any remote attacker to attempt exploitation. Although the confidentiality impact is limited, the integrity and availability of user sessions and application data can be compromised. Organizations relying on the Online Reviewer System for critical review workflows may experience disruption or data manipulation. The public availability of exploits increases the risk of widespread attacks, especially in environments where patching or mitigation is delayed. Overall, the vulnerability poses a moderate risk to organizations, particularly those with exposed instances accessible to external users or clients.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 23 Feb 2026, 21:12 UTC

Technical details

References

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