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Fencer Vulns
medium 5.4

CVE-2026-38948 json

Cross-Site Scripting (XSS) vulnerability exists in FUEL CMS v1.5.2 and before within the asset upload functionality.

published 2026-04-28 6 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-26063

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 5%
public exploits
0
none known

Summary

Cross-Site Scripting (XSS) vulnerability exists in FUEL CMS v1.5.2 and before within the asset upload functionality. The application fails to properly sanitize uploaded SVG files, allowing a low-privileged authenticated user to upload a crafted SVG file containing malicious code.

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
6 mo ago

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/Chittu13/cve-research/blob/main/CVE-2026-38948/README.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CNA 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

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.