Vulnerability · Published Sep 18, 2026 · Assigned by VulDB

CVE-2026-93504SveltyCMS User Attribute Update Endpoint +server.ts access control

Medium 6.3

In plain English

A medium-severity improper access control in SveltyCMS. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.4%top 69.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in SveltyCMS 0.0.6. This affects an unknown part of the file src/routes/api/[...path]/+server.ts of the component User Attribute Update Endpoint. Such manipulation leads to improper access controls. It is possible to launch the attack remotely. The name of the patch is 05b4f9efeb79e9d72a693232334d7529687f896f. It is advisable to implement a patch to correct this issue.

Affected products (as reported)

Vendor	Product	Versions
n/a	SveltyCMS	0.0.6

Weakness: CWE-284, CWE-266 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C

References

VDB-407421 | SveltyCMS User Attribute Update Endpoint +server.ts access control vdb-entry
VDB-407421 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
CVE-2026-93504 | CVE Analysis and Report third-party-advisory
Submit #942849 | SveltyCMS 0.0.6 Improper Access Controls third-party-advisory
https://github.com/SveltyCMS/SveltyCMS/commit/05b4f9efeb79e9d72a693232334d7529687f896f patch
https://github.com/SveltyCMS/SveltyCMS/ product