CVE-2025-9646: O2OA calendarConfig cross site scripting

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-08-29 · updated 2026-10-19
Weakness: CWE-79

Description

A security flaw has been discovered in O2OA up to 10.0-410. This vulnerability affects unknown code of the file /x_organization_assemble_personal/jaxrs/definition/calendarConfig. The manipulation of the argument toMonthViewName results in cross site scripting. The attack can be launched remotely. The exploit has been released to the public and may be exploited. The vendor replied in the GitHub issue (translated from simplified Chinese): "This issue will be fixed in the new version."

Affected products

O2OA: through 10.0-410

References

https://github.com/o2oa/o2oa/issues/170
https://github.com/o2oa/o2oa/issues/170#issue-3328947938
https://github.com/o2oa/o2oa/issues/170#issuecomment-3212894835
https://vuldb.com/?ctiid.321853
https://vuldb.com/?id.321853
https://vuldb.com/?submit.636625

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