Which versions of O2oa are affected by CVE-2026-2074?

Organizations using O2OA should be aware of moderate risk from CVE-2026-2074 rated CVSS 6.3. Exploitation could compromise the security of affected deployments.

Is there a public PoC exploit available for CVE-2026-2074?

Yes, a public proof-of-concept exploit is available for CVE-2026-2074. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-2074?

Within 30 days: Identify affected systems running O2OA and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

O2oa CVE-2026-2074

Q: What is the CVSS score of CVE-2026-2074?

CVE-2026-2074 has a CVSS 4.0 base score of 2.1 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.1%.

LOW

Externally Controlled Reference to a Resource in Another Sphere (CWE-610)

2026-02-07 cna@vuldb.com

XXE O2oa Zoneland

2.1

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

2.1 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

6.3 (MEDIUM) 2.1 (LOW)

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Feb 17, 2026 - 19:07 vuln.today

Public exploit code

CVE Published

Feb 07, 2026 - 05:16 nvd

MEDIUM 6.3

DescriptionCVE.org

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.

AnalysisAI

O2OA versions up to 9.0.0 contain an XML external entity (XXE) injection vulnerability in the /x_program_center/jaxrs/mpweixin/check HTTP POST handler that allows authenticated remote attackers to read sensitive files or conduct denial-of-service attacks. Public exploit code is available for this vulnerability, and no patch has been released despite vendor notification. The attack requires valid credentials but can be executed over the network without user interaction.

Technical ContextAI

Affects O2Oa. 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.