CVE-2026-82535: Chamilo LMS Stored XSS via Survey Answer Submission in reporting.php
chamilo · chamilo-lms
Fixed in 1.11.42 · Affected: chamilo-lms before 1.11.42 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 41% of scored CVEs
DescriptionCVE.org
Chamilo LMS before 1.11.42 and 3.0.0 contains a stored cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious script payloads into survey answers by computing deterministic invitation codes and bypassing authorization checks in the survey submission endpoint. Attackers can submit crafted answers containing unescaped HTML rendered in reporting views to execute arbitrary scripts in the browser sessions of teachers or administrators, enabling persistent backdoor account creation by exploiting the victim's authenticated session.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- chamilo · chamilo-lmsfrom 1.11.0 up to and including 1.11.40; from 2.0.0 up to and including 2.0.3
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Weakness
- Cross-site Scripting
- Vendor
- chamilo
- Published
- September 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-82535 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.