Horde Groupware Webmail Edition up to 5.2.22 Text Filter Library Text2html.php preProcess cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Horde Groupware Webmail Edition up to 5.2.22. It has been classified as problematic. The affected element is the function preProcess of the file Text2html.php of the component Text Filter Library. Performing a manipulation results in cross site scripting. This vulnerability was named CVE-2021-26929. The attack may be initiated remotely. In addition, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Horde Groupware Webmail Edition up to 5.2.22 (Groupware Software). This affects the function preProcess of the file Text2html.php of the component Text Filter Library. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity.

The weakness was presented 02/14/2021. It is possible to read the advisory at alexbirnberg.com. This vulnerability is uniquely identified as CVE-2021-26929. It demands that the victim is doing some kind of user interaction. Technical details and a public exploit are known. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The exploit is shared for download at packetstormsecurity.com. It is declared as proof-of-concept. By approaching the search of inurl:Text2html.php it is possible to find vulnerable targets with Google Hacking.

Upgrading eliminates this vulnerability. The upgrade is hosted for download at lists.horde.org.

The vulnerability is also documented in the vulnerability database at Exploit-DB (49769). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.6

VulDB Base Score: 3.5
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: lists.horde.org

Timelineinfo

02/09/2021 🔍
02/14/2021 +5 days 🔍
02/14/2021 +0 days 🔍
05/04/2025 +1540 days 🔍

Sourcesinfo

Vendor: horde.org

Advisory: alexbirnberg.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-26929 (🔍)
GCVE (CVE): GCVE-0-2021-26929
GCVE (VulDB): GCVE-100-169923
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/14/2021 11:08
Updated: 05/04/2025 05:57
Changes: 02/14/2021 11:08 (42), 03/01/2021 16:41 (5), 03/01/2021 16:46 (18), 06/16/2024 23:27 (22), 11/23/2024 18:17 (1), 05/04/2025 05:57 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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