Vulnerability in Prismjs Prism
CVE-2021-23341
The package prismjs before 1.23.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via the prism-asciidoc, prism-rest, prism-tap and prism-eiffel components.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.032 (87.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 87.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.032 · newest: 0.032 · change: 0.000
Affected products
- Prismjs Prism
- Prismjs — versions unspecified
Public proof-of-concept exploits
References
- snyk.io/vuln/SNYK-JS-PRISMJS-1076581 (Exploit, Third Party Advisory)
- snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1076582 (Exploit, Third Party Advisory)
- snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1076583 (Exploit, Third Party Advisory)
- github.com/PrismJS/prism/commit/c2f6a64426f44497a675cb32dccb079b3eff1609 (Patch, Third Party Advisory)
- github.com/PrismJS/prism/issues/2583 (Exploit, Patch, Third Party Advisory)
- github.com/PrismJS/prism/pull/2584 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-23341?
- CVE-2021-23341 is a high-severity vulnerability in Prismjs Prism. CVSS score: 7.5/10. Published 2021-02-18.
- How severe is CVE-2021-23341?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-23341 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.