CVE-2024-50337VulnerabilityPublished 2 Mar 2026

CVE-2024-50337: chamilo-lms · Server-Side Request Forgery (SSRF)

Affects chamilo-lmsSource CVE Database V5

Not known to be exploited · CVSS 5.3 Medium : upgrade to 1.11.28 when convenient.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score

5.3Medium

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

EPSS: 0.3% chance of exploitation in 30 days – higher than 27% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 1.11.28

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

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

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: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 2 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 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

Upgrade chamilo-lms and chamilo/chamilo-lms to 1.11.28.

Affected software

Product	Affected	Fixed in
chamilochamilo-lms	Affected <1.11.28	Fixed in 1.11.28
GitHubchamilo/chamilo-lms`pkg:github/chamilo/chamilo-lms`Other threats	Affected <1.11.28	Fixed in 1.11.28

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

AI-suggested

Organizations using Chamilo LMS should immediately upgrade to version 1.11.28 or later, where the SSRF vulnerability has been patched. In addition to patching, administrators should implement network-level controls to restrict outbound HTTP/HTTPS requests from the LMS server to only trusted destinations, minimizing the risk of SSRF exploitation. Web application firewalls (WAFs) can be configured to detect and block suspicious SSRF patterns, such as requests to internal IP ranges or unusual URL parameters. Monitoring and logging outbound requests from the LMS server can help detect exploitation attempts. If upgrading is not immediately possible, disabling the OpenId function temporarily or restricting its usage can reduce exposure. Regular security assessments and penetration testing focusing on SSRF and related vulnerabilities should be conducted to identify and remediate similar issues proactively.

Description

Chamilo is a learning management system. Prior to version 1.11.28, the OpenId function allows anyone to send requests to any URL on server's behalf, which results in unauthenticated blind SSRF. This issue has been patched in version 1.11.28.

Impact

The primary impact of CVE-2024-50337 is unauthorized internal network reconnaissance and potential data exposure from internal or protected resources accessible by the vulnerable Chamilo LMS server. Attackers can exploit this SSRF to bypass firewall rules and access internal services that are not exposed externally, potentially revealing sensitive information. While the vulnerability does not directly allow data modification or denial of service, it can be a stepping stone for more advanced attacks such as exploiting other internal vulnerabilities or exfiltrating sensitive data. Educational institutions and organizations relying on Chamilo LMS may face risks of information leakage or network mapping by attackers. The ease of exploitation without authentication increases the threat level, especially in environments where the LMS server has privileged network access. However, the lack of known active exploitation and limited impact on integrity and availability somewhat reduces the immediate risk severity.

CWE-918Server-Side Request Forgery (SSRF) (opens in a new tab)
Base weaknessCWE Top 25 (2025): #22OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
OWASP Cheat Sheets
Server Side Request Forgery Prevention (opens in a new tab)
Unvalidated Redirects and Forwards (opens in a new tab)
Cross Site Scripting Prevention (opens in a new tab)
DOM based XSS Prevention (opens in a new tab)
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V12.6.1 (opens in a new tab)
V5.2.6 (opens in a new tab)
Attack patterns
Server Side Request Forgery (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 9 Mar 2026, 17:19 UTC

WeaknessesCWE-918

Technical details

References

Community reviews

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