CVE-2026-52854

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

0.43% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 35.8% of scored records. A rank, not a probability.

NVD base score

8.6 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

NVD analysis status

Received. NVD last modified this record on 2026-08-19.

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

2026-08-18 21:32Z16 DAYS AGO

Last updated

2026-08-19 18:33Z15 DAYS AGO

Reserved

2026-06-08

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 8.6)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
• CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)Variant

Data version

5.2

Document digest

425b4be221b9acc21c6a99b732c34ea85f78223ae2dd2be9c5b3c9705896d0f6

• github.comhttps://github.com/ProfessionalWiki/Maps/security/advisories/GHSA-4h7g-5542-v3fcx_refsource_CONFIRM
• github.comhttps://github.com/ProfessionalWiki/Maps/pull/899x_refsource_MISC
• github.comhttps://github.com/ProfessionalWiki/Maps/commit/737a993fc2f40499e9bb22198fd1d56c25613806x_refsource_MISC
• github.comhttps://github.com/ProfessionalWiki/Maps/blob/12.1.3/RELEASE-NOTES.mdx_refsource_MISC
• github.comhttps://github.com/ProfessionalWiki/Maps/releases/tag/12.1.3x_refsource_MISC