This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2021-26929 →
DEBIAN-CVE-2021-26929
An XSS issue was discovered in Horde Groupware Webmail Edition through 5.2.22 (where the Horde_Text_Filter library before 2.3.7 is used). The attacker...
Original description
The description as published by the source.
An XSS issue was discovered in Horde Groupware Webmail Edition through 5.2.22 (where the Horde_Text_Filter library before 2.3.7 is used). The attacker can send a plain text e-mail message, with JavaScript encoded as a link or email that is mishandled by preProcess in Text2html.php, because bespoke use of \x00\x00\x00 and \x01\x01\x01 interferes with XSS defenses.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
php-horde-text-filter
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.7-1"}]}]
References
- advisory security-tracker.debian.org