Mark Posts < 2.0.1 - Admin+ Stored Cross-Site Scripting

published 2022-04-04 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-15966

cvss: 4.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 51%
public exploits: 0; none known

The Mark Posts WordPress plugin before 2.0.1 does not escape new markers, allowing high privilege users such as admin to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed

Patch / fix

fixed in 1 links 1

mark_posts_project mark_posts 2.0.1

plugins.trac.wordpress.org/changeset/2679436 advisory

Exploit prediction

0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

wpscan.com https://wpscan.com/vulnerability/05034521-6eb9-43b9-8f03-7e0de60e3022 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	4.8	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N

Affected products

Unknown Mark Posts

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

Technology feeds

WordPress rss critical rss

References

plugins.trac.wordpress.org /changeset/2679436
patch, third-party-advisory
wpscan.com /vulnerability/05034521-6eb9-43b9-8f03-7e0de60e3022
exploit, third-party-advisory

Sources

CVE List CVE-2022-0958
NVD CVE-2022-0958

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary