TI-2026-20265 Aliases CVE-2026-25099 GHSA-vfmc-78c4-2f7w

Remote Code Execution via Unrestricted File Upload in Bludit

MEDIUM 44CWE-434Published 2026-03-27 · Updated 2026-03-27

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-434.

Summary

Bludit’s API plugin allows an authenticated attacker with a valid API token to upload files of any type and extension without restriction, which can then be executed, leading to Remote Code Execution. This issue was fixed in 3.18.4.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01993 80th percentileScored 2026-11-07

Fix Fixed Bludit (Bludit): 3.18.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Bludit	Bludit	before 3.18.4	3.18.4	Patch available	CNA

Bludit VendorBludit Affected before 3.18.4 Fixed in 3.18.4 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:bludit:bludit::::::::	before 3.18.4	Vulnerable	Bludit

cpe:2.3:a:bludit:bludit:*:*:*:*:*:*:*:* Versions before 3.18.4 Vulnerable ·Bludit

Remediation

Fix · CNA Bludit (Bludit) Fixed in 3.18.4

Timeline

2026-10-02 Threatist record created from CVE-2026-25099
2026-10-03 Alias added: GHSA-vfmc-78c4-2f7w

References

Advisory 1

https://cert.pl/posts/2026/03/CVE-2026-25099

Other 1

https://github.com/bludit/bludit/releases/tag/3.18.4

TI-2019-12105 Bludit 3.9.2 allows remote code execution via bl-kernel/ajax/upload-images.php because… CVSS 3.1HIGH 8.8
TI-2024-16173 Bludit - Remote Code Execution (RCE) through Image API CVSS 4.0HIGH 8.9
TI-2024-16172 Bludit - Remote Code Execution (RCE) through File API CVSS 4.0HIGH 8.9
TI-2023-15122 An issue in Bludit 4.0.0-rc-2 allows authenticated attackers to change the Administrator… CVSS 3.1HIGH 8.8
TI-2020-13782 Bludit 3.9.2 is vulnerable to Remote Code Execution (RCE) via /admin/ajax/upload-images. CVSS 3.1HIGH 8.8
TI-2019-12856 bl-kernel/security.class.php in Bludit 3.9.2 allows attackers to bypass a brute-force… CVSS 3.1CRITICAL 9.8

See all 41 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences