CVE-2018-8741

8.8 highEPSS 4.2%

A directory traversal flaw in SquirrelMail 1.4.22 allows an authenticated attacker to exfiltrate (or potentially delete) files from the hosting server, related to ../ in the att_local_name field in Deliver.class.php.

Severity

CVSS 3.0

8.8 high

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 4.2% chance of exploitation in the next 30 days; higher than 90% of CVEs (scores of 2026-10-31)
CWE: CWE-22
Published: 2018-03-17
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

debian:debian_linux
squirrelmail:squirrelmail

References

http://www.openwall.com/lists/oss-security/2018/03/17/2
http://www.securitytracker.com/id/1040554
https://gist.github.com/hannob/3c4f86863c418930ad08853c1109364e
https://insinuator.net/2018/03/squirrelmail-full-disclosure-troopers18/
https://lists.debian.org/debian-lts-announce/2018/04/msg00012.html

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