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Fencer Vulns
medium 5.3

CVE-2024-33436 json

An issue in CSS Exfil Protection v.1.1.0 allows a remote attacker to obtain sensitive information due to missing support for CSS variables

published 2024-04-30 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-31174

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

An issue in CSS Exfil Protection v.1.1.0 allows a remote attacker to obtain sensitive information due to missing support for CSS variables

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/mlgualtieri/CSS-Exfil-Protection/issues/41 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/randshell/vulnerability-research/tree/main/CVE-2024-33436 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.