CVE-2026-63006

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Source

https://cve.org/CVERecord?id=CVE-2026-63006

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63006.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-63006

Aliases

GHSA-33p2-cm7w-62g3

Published

2026-09-25T18:23:13Z

Modified

2026-10-28T02:31:04Z

Severity

5.3 (Medium) CVSS_V4 - CVSS: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 Calculator

Summary

Zammad: HTML sanitizer API path allowlist bypass via interior path traversal in img src/srcset

Details

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, attacker-controlled HTML in inbound emails or tickets could bypass the image URL sanitizer using path traversal sequences. When an authenticated agent views the content, the browser resolves the URL to a protected API endpoint and sends the request with the agent's session cookie, enabling side effects such as forced logout without any user interaction. This issue is fixed in version 7.1.2.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63006.json"
}

References

Affected packages

Git / github.com/zammad/zammad

Affected ranges

Type

GIT

Repo

https://github.com/zammad/zammad

Events

Introduced

Fixed

7195a4a3e3ba9e801b6ad93f191ae423ed573d15

Fixed

856af85c12413087d6a74ffee25b16048a5ed8c3

Database specific

Show details

{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "7.1.2"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "856af85c12413087d6a74ffee25b16048a5ed8c3"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

1.*

1.6.0

3.*

3.7.0

5.*

5.2.0-alpha

5.3.0-alpha

5.4.0-alpha

5.5.0-alpha

6.*

6.0.0-alpha

6.1.0-alpha

6.2.0-alpha

6.3.0-alpha

6.4.0-alpha

6.5.0-alpha

6.6.0-alpha

7.*

7.0.0-alpha

7.1.0

7.1.0-alpha

7.1.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63006.json"