UBUNTU-CVE-2026-58451

See a problem?
Please try reporting it to the source first.

Source

https://ubuntu.com/security/CVE-2026-58451

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58451.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-58451

Upstream

CVE-2026-58451

Published

2026-07-02T00:00:00Z

Modified

2026-07-02T18:03:26.063565386Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

Horde IMP before 7.0.1 contains a path traversal vulnerability in lib/Compose.php that allows authenticated attackers to read arbitrary files from the server filesystem by embedding traversal sequences after a CKEditor path prefix in img src URLs. Attackers can bypass the stripos() prefix validation by appending sequences such as traversal segments after the matching prefix, causing filegetcontents() to read sensitive files whose contents are then exfiltrated as MIME parts in outgoing email; unauthenticated exploitation is also achievable via CSRF against an active authenticated session.

References

Affected packages

Ubuntu:16.04:LTS / php-horde-imp

Package

Name: php-horde-imp
Purl: pkg:deb/ubuntu/php-horde-imp?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

6.*

6.2.10-1

6.2.11-1

6.2.12-1

6.2.12-1ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "6.2.12-1ubuntu1",
            "binary_name": "php-horde-imp"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58451.json"

Ubuntu:18.04:LTS / php-horde-imp

Package

Name: php-horde-imp
Purl: pkg:deb/ubuntu/php-horde-imp?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

6.*

6.2.20-1

6.2.21-1

6.2.21-1ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "6.2.21-1ubuntu1",
            "binary_name": "php-horde-imp"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-58451.json"