CVE-2021-26929

CVE Database · CVE-2021-26929

CVE-2021-26929

· MEDIUMModified

CVSS v3.1

6.1

EPSS

4.94%

Published

Feb 14, 2021

Modified

Nov 21, 2024

Public PoC / Exploit (2)

All weaponized →

Exploit-DBHorde Groupware Webmail 5.2.22 - Stored XSS TrickestTrickest PoC index

Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weaknesses (CWE)

CWE-79

Affected Products (2)

horde · groupwarevulnerable

debian · debian_linuxvulnerable

References (14)

http://packetstormsecurity.com/files/162187/Webmail-Edition-5.2.22-XSS-Remote-Code-Execution.html

ExploitThird Party AdvisoryVDB Entry

http://packetstormsecurity.com/files/162194/Horde-Groupware-Webmail-5.2.22-Cross-Site-Scripting.html

Third Party Advisory