CVE-2026-119553

Description

Moodle 5.3.0, 5.2.0 through 5.2.4, 5.1.0 through 5.1.8, 5.0.0 through 5.0.11, and through 4.5.15 contains a path traversal vulnerability in the Blackboard question import format. Teachers with question import or lesson edit rights can upload a crafted zip with img src values containing ../ sequences, copying server files like config.php into their draft area.

References

• https://abraxaslabs.tech/research/moodle-blackboard-img
• https://github.com/moodle/moodle
• https://github.com/moodle/moodle/blob/v5.3.0/public/question/format/blackboard_six/formatbase.php#L128-L133
• https://www.vulncheck.com/advisories/moodle-through-5.3.0-5.2.4-5.1.8-5.0.11-and-4.5.15-blackboard-import-path-traversal