7.5

CVE-2023-4241: cloudflare lol-html Improper Input Validation

CVSS: 7.5v3.1HighModified
AliasesGHSA-c3x7-354f-4p2x
Published 16-08-2023Last modified 02-10-2024
Open JSON

Vulnerability summary

CVE-2023-4241 is a high (CVSS 7.5) Improper Input Validation vulnerability in cloudflare lol-html. EPSS estimates a 0.69% chance of exploitation in the next 30 days, higher than 51.8% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.69%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 16-08-2023
    PublishedVulnerability first disclosed.
  2. 02-10-2024
    Last modifiedVulnerability information updated.

Description

lol-html can cause panics on certain HTML inputs. Anyone processing arbitrary 3rd party HTML with the library is affected.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.69%

Chance of exploitation in the next 30 days

Percentile

52%

Versus all other CVEs

30-day change

0.00 pp

From 0.69% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.69%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cloudflare1 product
Crates.Io1 product
  • lol-html< 1.1.1

2 vendors · 2 products

References

3 links