CVE-2013-4522

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2013-11-26 · updated 2026-06-16
Weakness: CWE-200

Description

lib/filelib.php in Moodle through 2.2.11, 2.3.x before 2.3.10, 2.4.x before 2.4.7, and 2.5.x before 2.5.3 does not send "Cache-Control: private" HTTP headers, which allows remote attackers to obtain sensitive information by requesting a file that had been previously retrieved by a caching proxy server.

Affected products

Moodle: through 2.2.11; 1.1.1, 1.2.0, 1.2.1, 1.3.0, 1.3.1, 1.3.2 (+111)

References

http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-38743
http://openwall.com/lists/oss-security/2013/11/25/1
https://moodle.org/mod/forum/discuss.php?d=244479
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-38743
http://openwall.com/lists/oss-security/2013/11/25/1
https://moodle.org/mod/forum/discuss.php?d=244479

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