CVE-2015-8807 Cross-site scripting in n/a

What is CVE-2015-8807?

CVE-2015-8807 is a medium-severity cross-site scripting vulnerability in Debian Debian Linux, published on 13 Apr 2016. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Cross-site scripting (XSS) vulnerability in the _renderVarInput_number function in horde/framework/Core/lib/Horde/Core/Ui/VarRenderer/Html.php in Horde Groupware before 5.2.12 and Horde Groupware Webmail Edition before 5.2.12 allows remote attackers to inject arbitrary web script or HTML via vectors involving numeric form fields.

Weakness: CWE-79

Which versions are affected by CVE-2015-8807?

It affects 3 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Horde Groupware.

How do I fix CVE-2015-8807?

Upgrade to a fixed version.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2015-8807 being exploited?

There is no known exploitation of CVE-2015-8807 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2015-8807, DSA-3496-1, GHSA-whm8-gjx5-crg3, UBUNTU-CVE-2015-8807.