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Vulnerability record · CVE-2008-3824 · published 12 September 2008

CVE-2008-3824: Horde cross-site scripting vulnerability

Horde · Horde

Cross-site scripting (XSS) vulnerability in (1) Text_Filter/Filter/xss.php in Horde 3.1.x before 3.1.9 and 3.2.x before 3.2.2 and (2) externalinput.php in Popoon r22196 and earlier allows remote attackers to inject arbitrary web script or HTML by using / (slash) characters as replacements for spaces in an HTML e-mail message.

4.3 CVSS 2.0 Medium EPSS 5.2% · top 7.9% CWE-79 · Cross-site scripting
4.3CVSS 2.0 base score
5.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
30References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

Cross-site scripting (XSS) vulnerability in (1) Text_Filter/Filter/xss.php in Horde 3.1.x before 3.1.9 and 3.2.x before 3.2.2 and (2) externalinput.php in Popoon r22196 and earlier allows remote attackers to inject arbitrary web script or HTML by using / (slash) characters as replacements for spaces in an HTML e-mail message.

AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://blog.liip.ch/missed-case-in-externalinput-php-resulting-in-viable-xss-attacks.html
http://marc.info/?l=horde-announce&m=122103888111491&w=2 Patch
http://marc.info/?l=horde-announce&m=122104360019867&w=2
http://ocert.org/patches/2008-012/Text_Filter.31.patch Patch
http://ocert.org/patches/2008-012/Text_Filter.patch Patch
http://osvdb.org/47996
http://secunia.com/advisories/31842 Vendor Advisory
http://securityreason.com/securityalert/4245
http://www.ocert.org/advisories/ocert-2008-012.html Patch
http://www.openwall.com/lists/oss-security/2008/09/10/1
http://www.phpmyfaq.de/advisory_2008-09-11.php
http://www.securityfocus.com/archive/1/496182/100/0/threaded
http://www.securityfocus.com/bid/31107 Exploit
http://www.vupen.com/english/advisories/2008/2548
https://exchange.xforce.ibmcloud.com/vulnerabilities/45031
http://blog.liip.ch/missed-case-in-externalinput-php-resulting-in-viable-xss-attacks.html
http://marc.info/?l=horde-announce&m=122103888111491&w=2 Patch
http://marc.info/?l=horde-announce&m=122104360019867&w=2
http://ocert.org/patches/2008-012/Text_Filter.31.patch Patch
http://ocert.org/patches/2008-012/Text_Filter.patch Patch
http://osvdb.org/47996
http://secunia.com/advisories/31842 Vendor Advisory
http://securityreason.com/securityalert/4245
http://www.ocert.org/advisories/ocert-2008-012.html Patch
http://www.openwall.com/lists/oss-security/2008/09/10/1
http://www.phpmyfaq.de/advisory_2008-09-11.php
http://www.securityfocus.com/archive/1/496182/100/0/threaded
http://www.securityfocus.com/bid/31107 Exploit
http://www.vupen.com/english/advisories/2008/2548
https://exchange.xforce.ibmcloud.com/vulnerabilities/45031

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Source: NIST National Vulnerability Database (record CVE-2008-3824), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.