CVE-2026-2074 O2OA HTTP POST Request check xml external entity reference
Remote attackers can exploit an XML External Entity vulnerability in O2OA's HTTP POST handler to read sensitive data or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-2074?
CVE-2026-2074 is a medium-severity vulnerability in O2OA, published on 7 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was identified in O2OA up to 9.0.0. This impacts an unknown function of the file /x_program_center/jaxrs/mpweixin/check of the component HTTP POST Request Handler. The manipulation leads to xml external entity reference. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-2074?
It affects 1 product.
Products include Zoneland O2oa.
How do I fix CVE-2026-2074?
No fix has been published for CVE-2026-2074 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-2074 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2074 exists.
Other vulnerabilities in O2OA
Sources
Also known as GHSA-wxpc-f9fq-w9pq.