📦

groupware

Vendor: horde

Actively Exploited 0 CISA KEV List
PoC / Exploits 13 Code Available
Total RCEs 6 Remote Access
Total CVEs 199 Total Indexed
Avg. EPSS 8.10% Exploit Prob.
Latest CVE CVE-2025-41066 Dec 02

Security Vulnerability Index

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6.9 CVSS

Horde Groupware v5.2.22 has a user enumeration vulnerability that allows an unauthenticated attacker to determine the existence of valid accounts on the system. To exploit the vulnerability, an HTTP request must be sent to ‘/imp/attachment.php’ including the parameters ‘id’ and ‘u’. If the specified user exists, the server will return the download of an empty file; if it does not exist, no download will be initiated, which unequivocally reveals the validity of the user.

EPSS: 0.22%
8.0 CVSS

Horde Groupware Webmail Edition through 5.2.22 allows a reflection injection attack through which an attacker can instantiate a driver class. This then leads to arbitrary deserialization of PHP objects.

EPSS: 70.48%
6.1 CVSS
CVE-2021-26929
Exploit Found

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.

EPSS: 4.94%
6.1 CVSS

Gollem before 3.0.13, as used in Horde Groupware Webmail Edition 5.2.22 and other products, is affected by a reflected Cross-Site Scripting (XSS) vulnerability via the HTTP GET dir parameter in the browser functionality, affecting breadcrumb output. An attacker can obtain access to a victim's webmail account by making them visit a malicious URL.

EPSS: 0.97%
6.1 CVSS

The image view functionality in Horde Groupware Webmail Edition before 5.2.22 is affected by a stored Cross-Site Scripting (XSS) vulnerability via an SVG image upload containing a JavaScript payload. An attacker can obtain access to a victim's webmail account by making them visit a malicious URL.

EPSS: 0.88%
6.5 CVSS
CVE-2020-8866
RCE Exploit Found

This vulnerability allows remote attackers to create arbitrary files on affected installations of Horde Groupware Webmail Edition 5.2.22. Authentication is required to exploit this vulnerability. The specific flaw exists within add.php. The issue results from the lack of proper validation of user-supplied data, which can allow the upload of arbitrary files. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the www-data user. Was ZDI-CAN-10125.

EPSS: 9.58%
6.3 CVSS
CVE-2020-8865
Exploit Found

This vulnerability allows remote attackers to execute local PHP files on affected installations of Horde Groupware Webmail Edition 5.2.22. Authentication is required to exploit this vulnerability. The specific flaw exists within edit.php. When parsing the params[template] parameter, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the www-data user. Was ZDI-CAN-10469.

EPSS: 6.81%
9.8 CVSS
CVE-2020-8518
RCE Exploit Found

Horde Groupware Webmail Edition 5.2.22 allows injection of arbitrary PHP code via CSV data, leading to remote code execution.

EPSS: 71.73%
6.5 CVSS
CVE-2013-6275
Exploit Found

Multiple CSRF issues in Horde Groupware Webmail Edition 5.1.2 and earlier in basic.php.

EPSS: 2.07%
5.3 CVSS

Horde Groupware Web mail 5.1.2 has CSRF with requests to change permissions

EPSS: 1.07%