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CVE-2026-24479

54
FAUCET Score

CVE-2026-24479 is a critical path traversal vulnerability affecting HUSTOF, an open-source online judge, prior to version 26.01.24. Attackers can upload specially crafted ZIP archives containing malicious filenames with directory traversal sequences, allowing arbitrary file writes to the web root. This flaw carries a CVSS score of 9.8 (Critical) due to its network-based attack vector, low complexity, and potential for complete compromise (Remote Code Execution). Currently, there is no public exploit code available, and the vulnerability shows minimal community discussion or media coverage, indicating a low active exploitation risk at this time.

Impacted Technologies

VendorProductVersion(s)CPE
< 26.01.24CPE matchmatch criteria
cpe:2.3:a:hustoj:hustoj:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

9.3CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
7.90%
Probability of exploitation in next 30 days
EPSS Percentile
94.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: HUSTOJ Admin users can zip-slip problem_import_qduoj.php, planting PHP files in webroot for RCE · Jan 26, 2026
ExploitDB: EDB-52539 · Apr 30, 2026
This CVE's current EPSS score of 0.0790 is in the 89th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / zhblue/hustoj/commit/902bd09e6d0011fe89cd84d4236899314b33101f
Patch
github.com / zhblue/hustoj/security/advisories/GHSA-xmgg-2rw4-7fxj
Vendor Advisory