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CVE-2023-53924

28
FAUCET Score

CVE-2023-53924 is a remote code execution vulnerability in UliCMS 2023.1-sniffing-vicuna, allowing authenticated attackers to upload malicious PHP .phar files as profile avatars. By visiting the uploaded file's location, attackers can execute arbitrary system commands. This vulnerability carries a high CVSS score of 8.8 due to its low attack complexity and complete compromise potential (confidentiality, integrity, availability). While no public exploits or active exploitation have been observed, and community discussion is minimal, its high FAUCET Risk Score of 90/100 indicates significant potential danger.

Impacted Technologies

VendorProductVersion(s)CPE
2023.1CPE matchmatch criteria
cpe:2.3:a:ulicms:ulicms:2023.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

8.7HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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
LOW
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
0.83%
Probability of exploitation in next 30 days
EPSS Percentile
53.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0083 is in the 48th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

web.archive.org / web/20230314183734/https://en.ulicms.de
Product
exploit-db.com / exploits/51434
Exploit
vulncheck.com / advisories/ulicms-sniffing-vicuna-remote-code-execution-via-avatar-upload
Third Party Advisory