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Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in fesomia FSM Custom Featured Image Caption fsm-custom-featured-image-caption allows DOM-Based XSS.This issue affects FSM Custom Featured Image Caption: from n/a through <= 1.25.1.

PUBLISHED Reserved 2026-04-07 | Published 2026-04-08 | Updated 2026-04-13 | Assigner Patchstack

Problem types

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
unaffected

Any version
affected

Credits

Nabil Irawan | Patchstack Bug Bounty Program finder

References

patchstack.com/...site-scripting-xss-vulnerability?_s_id=cve vdb-entry

cve.org (CVE-2026-39693)

nvd.nist.gov (CVE-2026-39693)

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