CVE-2024-28757

HIGH 2 PoCs
MEDIUM Priority: 0.15 BB Relevance: 85/100
Published: 2024-03-10 Modified: 2026-11-10 First seen: 2026-11-10 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

Description

libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate).

Weakness Classification (1)

Bug Bounty Relevance

85 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction
✓ PoC available (2)

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

2.03%
Raw Score 0.020300
Percentile 81.3%
Date 2026-11-13

EPSS Trend

2026-11-13
0.02030
2026-11-12
0.02030
2026-11-10
0.02006
2026-11-09
0.02006

Intelligence Sources

mitre ref →
nvd ref →