Medium severity · published May 5, 2025
CVE-2025-27921
A reflected cross-site scripting (XSS) vulnerability was discovered in Output Messenger before 2.0.63, where unsanitized input could be injected into the web application’s…
6.1
CVSS
0.4%
EPSS
No
On KEV
Description
A reflected cross-site scripting (XSS) vulnerability was discovered in Output Messenger before 2.0.63, where unsanitized input could be injected into the web application’s response. This vulnerability occurs when user-controlled input is reflected back into the browser without proper sanitization or encoding.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OM
Output Messenger · Srimax
before 2.0.63 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-27921
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-27921
Vendor Advisory
https://www.outputmessenger.com/cve-2025-27921/
Product
https://www.srimax.com/products-2/output-messenger/
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