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CVE-2015-8807

17
FAUCET Score

CVE-2015-8807 describes a cross-site scripting (XSS) vulnerability in Horde Groupware and Horde Groupware Webmail Edition versions prior to 5.2.12, specifically within the _renderVarInput_number function. This flaw allows remote attackers to inject arbitrary web script or HTML through specially crafted numeric form fields. Rated Medium severity (CVSS 6.1), the vulnerability requires user interaction (UI:R) but can be exploited over the network (AV:N) with low attack complexity (AC:L), potentially leading to limited confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
22CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
23CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*
5.2.11CPE matchmatch criteria
cpe:2.3:a:horde:groupware:5.2.11:*:*:*:*:*:*:*
5.2.11CPE matchmatch criteria
cpe:2.3:a:horde:groupware:5.2.11:*:*:*:webmail:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.06%
Probability of exploitation in next 30 days
EPSS Percentile
79.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0206 is in the 90th percentile among its peer group of 26,236 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lists.fedoraproject.org / pipermail/package-announce/2016-February/177484.html
lists.fedoraproject.org / pipermail/package-announce/2016-February/177584.html
lists.horde.org / archives/announce/2016/001148.html
Vendor Advisory
lists.horde.org / archives/announce/2016/001149.html
Vendor Advisory
github.com / horde/horde/blob/e838d4c800b0d1ecaf8b4cc613fd3af4f994c79c/bundles/webmail/docs/CHANGES
Exploit
github.com / horde/horde/commit/11d74fa5a22fe626c5e5a010b703cd46a136f253
debian.org / security/2016/dsa-3496
openwall.com / lists/oss-security/2016/02/06/4
openwall.com / lists/oss-security/2016/02/06/5