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VulnerabilityPublished

CVE-2026-28430: chamilo-lms · SQL Injection

Affects chamilo-lmsSource CVE Database V5

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Not known to be exploited · CVSS 9.3 Critical : upgrade to 1.11.34 as a priority.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 4.0 base score
9.3Critical
How severe the flaw is on the 0–10 CVSS scale.

Contested

Critical score, yet low EPSS after six months
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 1.11.34
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 30 Oct 2026.

What to do

Upgrade chamilo-lms and chamilo/chamilo-lms to 1.11.34.

Affected software

ProductAffectedFixed in
chamilochamilo-lmsAffected
  • <1.11.34
Fixed in
  • 1.11.34
GitHubchamilo/chamilo-lmspkg:github/chamilo/chamilo-lmsOther threatsAffected
  • <1.11.34
Fixed in
  • 1.11.34

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

AI-suggested

Organizations should immediately upgrade Chamilo LMS to version 1.11.34 or later, which contains the official patch addressing this vulnerability. Until the upgrade is applied, implement web application firewall (WAF) rules to detect and block SQL injection attempts targeting the 'custom_dates' parameter. Disable or restrict legacy password reset mechanisms if possible, or enforce stronger authentication and validation on password reset workflows. Conduct thorough audits of LMS logs and database integrity to detect any signs of compromise. Employ network segmentation to limit access to the LMS backend database. Regularly back up LMS data and verify backup integrity to enable recovery in case of data corruption or deletion. Educate administrators about the risks of using outdated software and the importance of timely patching. Monitor threat intelligence feeds for any emerging exploits related to this CVE.

Description

CVE-2026-28430 is a critical unauthenticated SQL injection vulnerability in Chamilo LMS versions prior to 1.11.34. It allows remote attackers to execute arbitrary SQL commands via the custom_dates parameter. Exploitation can lead to full administrative account takeover by chaining with a legacy password reset mechanism, without requiring any credentials. The vulnerability exposes the entire database, including personally identifiable information (PII) and system configurations. Chamilo LMS is widely used in educational institutions globally, making this a significant threat. The issue has been patched in version 1.11.34.

References

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