CVE-2023-4221 — Command injection in `main/lp/openoffice_presentation

Command injection in `main/lp/openoffice_presentation.class.php` in Chamilo LMS <= v1.11.24 allows users permitted to upload Learning Paths to obtain remote code execution via improper neutralisation of special characters.

01What is this vulnerability?

Command injection in `main/lp/openoffice_presentation.class.php` in Chamilo LMS <= v1.11.24 allows users permitted to upload Learning Paths to obtain remote code execution via improper neutralisation of special characters.

02Affected products

Vendor	Product	Versions
Chamilo	Chamilo	0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-11-28T07:13:51.191Z
• Last modified: 2024-08-02T07:17:12.372Z

09References

• support.chamilo.org — https://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-128-2…
• starlabs.sg — https://starlabs.sg/advisories/23/23-4221
• github.com — https://github.com/chamilo/chamilo-lms/commit/ed72914608d2a07ee2eb587c1a654480d0…
• github.com — https://github.com/chamilo/chamilo-lms/commit/841a07396fed0ef27c5db13a1b700eac02…