CVE-2026-54002

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 ImpacttotalSuccessful exploitation gives total 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

0.55% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 43.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/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 2026-07-10.

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

2026-07-09 18:34Z1 MO AGO

Last updated

2026-07-09 19:26Z1 MO AGO

Reserved

2026-06-11

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 8.5)

CNA CVSS vector

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

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
• CWE-87Improper Neutralization of Alternate XSS SyntaxVariant

Data version

5.2

Document digest

c3866c36f929b1d122cccf5493cfdd2469348f2528bbd26a84ab7e9bc6dca79b

• github.comhttps://github.com/getkirby/kirby/security/advisories/GHSA-wr9h-4r83-f4v6x_refsource_CONFIRM
• github.comhttps://github.com/getkirby/kirby/commit/0f0437b5128c910103cbc78fc34d94b2a3faef4cx_refsource_MISC
• github.comhttps://github.com/getkirby/kirby/commit/7ad76cf9c7387462828e6ebfc8404e31b37829e9x_refsource_MISC
• github.comhttps://github.com/getkirby/kirby/commit/9ec1873864441dbc06479ef7823da348ec7f2700x_refsource_MISC
• github.comhttps://github.com/getkirby/kirby/commit/bb2562e16c754493a403b8df84c9883108871e4cx_refsource_MISC
• github.comhttps://github.com/getkirby/kirby/releases/tag/4.9.4x_refsource_MISC
• github.comhttps://github.com/getkirby/kirby/releases/tag/5.4.4x_refsource_MISC