CVE-2021-26929

Published: Feb 14, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-79

6.1MEDIUM

NVD MITRE

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:RUser Interaction

Required

Scope

S:CScope

Changed

Impact

C:LConfidentiality

Low

I:LIntegrity

Low

A:NAvailability

None

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Weaknesses

CWE-79

Affected Products

oss-project

oss-project·GBaka debian gnu/linux

debian linuxOn-premOS

Operating Systems / linux-distro

and 1 more affected products View all →

Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Execution

Initial Access

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References

https://github.com/horde/webmail/releases

github.com

https://www.horde.org/apps/webmail

horde.org

https://www.alexbirnberg.com/horde-xss.html

alexbirnberg.com

and 4 more references View all →

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