CVE-2026-63006Network attack vectorHinoki check available

Agent logout via image URL path traversal

Published Sep 25, 2026 · Updated Sep 25, 2026

Path traversal in Zammad before 7.1.2 allows remote attackers to make an authenticated agent's browser send protected API requests. The image URL sanitizer accepts interior traversal sequences in attacker-controlled img src or srcset values, so browser path resolution escapes the allowed image path. Exploitation requires an agent to view a crafted inbound email or ticket; the request carries that agent's session cookie and can force logout without further interaction.

CVSS severity5.3
Medium
EPSS probability0.48%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Path traversal in Zammad before 7.1.2 allows remote attackers to make an authenticated agent's browser send protected API requests. The image URL sanitizer accepts interior traversal sequences in attacker-controlled img src or srcset values, so browser path resolution escapes the allowed image path. Exploitation requires an agent to view a crafted inbound email or ticket; the request carries that agent's session cookie and can force logout without further interaction.

The record

CVE
CVE-2026-63006
Published
Sep 25, 2026
Updated
Sep 25, 2026
Vendor
Zammad GmbH
Product
Zammad
Classifications
CWE-22
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 7.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Zammad GmbH · Zammadversion=< 7.1.2

Published CVSS scores

5.3GitHub Security AdvisoryCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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