CVE-2026-56735

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.42% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 36.1% of scored records. A rank, not a probability.

NVD base score

5.3 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-09-28.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-25 17:04Z1 MO AGO

Last updated

2026-09-25 19:06Z1 MO AGO

Reserved

2026-06-22

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Weaknesses

• CWE-82Improper Neutralization of Script in Attributes of IMG Tags in a Web PageVariant

Data version

5.2

Document digest

d56c2019d164837387023086fca1a0e07a7acecf8b81229c7f1ce3085c2e2fa3

• github.comhttps://github.com/zammad/zammad/security/advisories/GHSA-7fwx-3xr4-qm6wx_refsource_CONFIRM
• github.comhttps://github.com/zammad/zammad/commit/02c1ff8dc65961352dc047013bece9dff1f2ffb7x_refsource_MISC
• github.comhttps://github.com/zammad/zammad/releases/tag/7.0.2x_refsource_MISC
• github.comhttps://github.com/zammad/zammad/releases/tag/7.1.0x_refsource_MISC