Vulnerability · Published Apr 5, 2026 · Assigned by VulDB

CVE-2026-5529Dromara lamp-cloud DefUserController pageUser improper authorization

Medium 4.3

In plain English

A medium-severity security flaw in lamp-cloud from Dromara. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.3%top 79.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was detected in Dromara lamp-cloud up to 5.8.1. This vulnerability affects the function pageUser of the file /defUser/pageUser of the component DefUserController. Performing a manipulation results in improper authorization. The attack can be initiated remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Affected products (as reported)

Vendor	Product	Versions
Dromara	lamp-cloud	5.8.05.8.1

Weakness: CWE-285, CWE-266 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R

References

VDB-355282 | Dromara lamp-cloud DefUserController pageUser improper authorization vdb-entry, technical-description
VDB-355282 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #782103 | Dromara lamp-cloud 5.8.1 Broken object property level authorization third-party-advisory
https://github.com/dromara/lamp-cloud/issues/403 exploit, issue-tracking
https://github.com/dromara/lamp-cloud/ product