Certifica WP <= 3.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via evento Parameter

published 2025-09-11 last yr. modified 2026-06-17 4mo ago also EUVD-2025-27671

cvss: 6.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 22%
public exploits: 0; none known

The Certifica WP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘evento’ parameter in all versions up to, and including, 3.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: last yr. (2025-09-11)

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Affected products

moreirapontocom Certifica WP

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

Technology feeds

WordPress rss critical rss

References

Sources

CVE List CVE-2025-8316
NVD CVE-2025-8316

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