7.5

CVE-2021-23341: prismjs prism

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2021-23341DEBIAN-CVE-2021-23341GHSA-h4hr-7fg3-h35w
Published 18-02-2021Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2021-23341 is a high (CVSS 7.5) vulnerability in prismjs prism. EPSS estimates a 3.17% chance of exploitation in the next 30 days, higher than 87.8% of scored vulnerabilities. 4 public exploits are recorded.

Overall risk
41/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
3.17%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits4github, reference

Timeline

  1. 18-02-2021
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

3.17%

Chance of exploitation in the next 30 days

Percentile

88%

Versus all other CVEs

30-day change

0.00 pp

From 3.17% on 19-09-2026

19-09-202619-10-2026
EPSS score
3.17%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

4 found
  • githubUnverified

    Prism

    Maturity: poc

  • referenceUnverified

    Exploit Reference (snyk.io)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (snyk.io)

    Maturity: unknown

Show all 4 exploits
  • referenceUnverified

    Exploit Reference (snyk.io)

    Maturity: unknown

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Debian1 product
  • node-prismjs< 1.23.0+dfsg-1
Npm1 product
  • prismjs< 1.23.0
Prismjs1 product
Ubuntu1 product
  • node-prismjsAll versions (No fix recorded)

4 vendors · 4 products

References

11 links
Show all 11 references