CVE-2015-3174

Severity: low (CVSS 3.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-06-01 · updated 2026-06-17
Weakness: CWE-79

Description

mod/quiz/db/access.php in Moodle through 2.5.9, 2.6.x before 2.6.11, 2.7.x before 2.7.8, and 2.8.x before 2.8.6 does not set the RISK_XSS bit for graders, which allows remote authenticated users to conduct cross-site scripting (XSS) attacks via crafted gradebook feedback during manual quiz grading.

Affected products

Moodle: through 2.5.9; 2.5.0, 2.5.1, 2.5.2, 2.5.3, 2.5.4, 2.5.5 (+28)

References

http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-49941
http://openwall.com/lists/oss-security/2015/05/18/1
http://www.securityfocus.com/bid/74719
http://www.securitytracker.com/id/1032358
https://moodle.org/mod/forum/discuss.php?d=313681
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-49941
http://openwall.com/lists/oss-security/2015/05/18/1
http://www.securityfocus.com/bid/74719
http://www.securitytracker.com/id/1032358
https://moodle.org/mod/forum/discuss.php?d=313681

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