CVE-2025-11332VulnerabilityPublished 6 Oct 2025Updated 24 Feb 2026

CVE-2025-11332: CmsEasy · Cross Site Scripting

Affects CmsEasySource CVE Database V5

Not known to be exploited · CVSS 5.1 Medium.

Data as of 26 Oct 2026, 08:30 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 22% 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 6 Oct 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 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 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
CmsEasy	Affected =7.7.0 =7.7.1 =7.7.2 =7.7.3 =7.7.4 =7.7.5 =7.7.6 =7.7.7	Fixed in–

AI-suggested

Given the absence of official patches, organizations should implement several specific mitigations: 1) Employ web application firewalls (WAFs) with custom rules to detect and block suspicious requests manipulating the PHP_SELF parameter. 2) Sanitize and validate all user-controllable inputs at the web server or reverse proxy level to prevent malicious script injection. 3) Implement Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers. 4) Educate users and administrators about the risks of clicking untrusted links and encourage vigilance against phishing attempts. 5) Monitor web server logs for unusual URL patterns targeting PHP_SELF or other URL parameters. 6) Consider temporarily disabling or restricting the vulnerable URL Handler component if feasible. 7) Plan for an upgrade or migration to a CmsEasy version that addresses this vulnerability once available. 8) Isolate CmsEasy installations from critical internal networks to limit potential lateral movement if compromised.

Description

A vulnerability was determined in CmsEasy up to 7.7.7. This affects an unknown function in the library lib/inc/view.php of the component URL Handler. Executing a manipulation of the argument PHP_SELF can lead to cross site scripting. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Impact

The primary impact of CVE-2025-11332 is the potential compromise of user session integrity and confidentiality through the execution of arbitrary scripts in the victim's browser. This can lead to session hijacking, unauthorized actions performed on behalf of authenticated users, phishing attacks, or defacement of websites. For organizations, this can result in reputational damage, loss of user trust, and potential data breaches if sensitive information is exposed. Since CmsEasy is a CMS, compromised sites may also be used as vectors for further attacks such as malware distribution or lateral movement within networks. The lack of vendor response and patches increases the window of exposure, making organizations more vulnerable. The medium severity rating indicates that while the vulnerability is serious, it does not allow direct system compromise or widespread denial of service. However, the ease of remote exploitation and public disclosure elevate the risk, especially for organizations with high web traffic or sensitive user data.

Summary

CVE-2025-11332 is a cross-site scripting vulnerability identified in CmsEasy, a content management system, affecting all versions from 7.7.0 to 7.7.7. The vulnerability arises from improper sanitization of the PHP_SELF server variable within the URL Handler component, specifically in the lib/inc/view.php file. Attackers can manipulate the PHP_SELF argument to inject malicious scripts that execute in the context of a victim's browser when they visit a crafted URL. This XSS flaw is remotely exploitable without requiring authentication, though it requires the victim to interact with a malicious link or page. The vulnerability impacts confidentiality and integrity by potentially allowing attackers to steal session cookies, perform actions on behalf of users, or deface web content. The vendor was notified but has not issued a patch or response, leaving users exposed. Although no active exploits have been reported in the wild, public disclosure increases the likelihood of exploitation attempts. The CVSS 4.0 score of 5.1 reflects a medium severity, considering the ease of remote exploitation, lack of required privileges, but the necessity of user interaction and limited scope of impact. Organizations relying on CmsEasy should monitor for updates and consider interim mitigations to reduce risk.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 24 Feb 2026, 21:52 UTC

Technical details

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