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CVE-2026-58451

MEDIUM
6.5
CVSS 3.1
Description
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 file_get_contents() 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.

Metadata

CVE ID
CVE-2026-58451
State
PUBLISHED
Assigner
VulnCheck
Reserved
2026-06-30 20:20 UTC
Published
2026-07-01 18:16 UTC
Last updated
2026-07-01 18:41 UTC
Primary CWE
CWE-22
Improper Limitation of a Pathname to a Restricted Directory …
Vendor / Product
horde / imp
Sources
cve.org  ·  NVD

Severity & Metrics

6.5 MEDIUM CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
horde imp — 0 < 7.0.1
Weakness (CWE)
CWESourceDescription
CWE-22 cna Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSS scores (2)
ScoreSeverityVersionSourceVector
7.1 HIGH 4.0 cna 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
6.5 MEDIUM 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References (5)
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