CVE-2022-23517

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.
• 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

1.57% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 74.9% of scored records. A rank, not a probability.

NVD base score

7.5 (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:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2022-12-14 16:10Z3 YR AGO

Last updated

2025-11-03 21:45Z11 MO AGO

Reserved

2022-01-19

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-1333Inefficient Regular Expression ComplexityBase

Data version

5.2

Document digest

2bb6b5913ccf439b7bd9c6198823c6485608ac03a1801bf3814c8f56b23cb826

• github.comhttps://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8wx_refsource_CONFIRM
• github.comhttps://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979x_refsource_MISC
• hackerone.comhttps://hackerone.com/reports/1684163x_refsource_MISC
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2023/09/msg00012.html
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/09/msg00045.html