CVE-2025-67850
mediumpriority · track · 24EPSS 0.003 · 23 %ileDEEURUUSEPSS · scored 2026-10-27
A flaw was found in moodle. This vulnerability, known as Cross-Site Scripting (XSS), occurs due to insufficient checks on user-provided data in the formula editor's arithmetic expression fields. A remote attacker could inject malicious code into these fields. When other users view these expressions, the malicious code would execute in their web browsers, potentially compromising their data or leading to unauthorized actions.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.6–7.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (30)
Products and version ranges known to be affected.
advisories (3)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-2851Moodle: Mehrere SchwachstellenDeutsch2025-12-15csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Moodle ausnutzen, um beliebigen Programmcode auszuführen, Benutzer auf bösartige Websites umzuleiten, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren, Cross-Site-Scripting-Angriffe durchzuführen oder vertrauliche Informationen offenzulegen.
- GHSA-6mmv-f6c6-v6q8Moodle vulnerable to Cross-site Scripting2026-02-03ghsa · osvUS
A flaw was found in Moodle. This vulnerability, known as Cross-site Scripting (XSS), occurs due to insufficient checks on user-provided data in the formula editor's arithmetic expression fields. A remote attacker could inject malicious code into these fields. When other users view these expressions, the malicious code would execute in their web browsers, potentially compromising their data or leading to unauthorized actions.
- BIT-moodle-2025-67850Moodle: moodle: cross-site scripting vulnerability via inadequate input filtering in formula editor2026-02-12vendor · osvUS
A flaw was found in moodle. This vulnerability, known as Cross-Site Scripting (XSS), occurs due to insufficient checks on user-provided data in the formula editor's arithmetic expression fields. A remote attacker could inject malicious code into these fields. When other users view these expressions, the malicious code would execute in their web browsers, potentially compromising their data or leading to unauthorized actions.
also known as (6)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2025-67850cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2423838cnnvd
- https://access.redhat.com/security/cve/CVE-2025-67850enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2423838enisa_euvd
- https://access.redhat.com/security/cve/CVE-2025-67850Third Party Advisorynvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2423838Issue TrackingThird Party Advisorynvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan