Twenty20 Image Before-After <= 1.5.9 - Contributor+ Stored XSS

published 2023-02-13 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-51913

cvss: 5.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits: 0; none known

The Twenty20 Image Before-After WordPress plugin through 1.5.9 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 19 mo ago (2025-03-20)

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

wpscan.com https://wpscan.com/vulnerability/e54804c7-68a9-4c4c-94f9-1c3c9b97e8ca referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CNA	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

Unknown Twenty20 Image Before-After

Classification

Technology feeds

WordPress rss critical rss

References

wpscan.com /vulnerability/e54804c7-68a9-4c4c-94f9-1c3c9b97e8ca
exploit, vdb-entry, technical-description, third-party-advisory

Sources

CVE List CVE-2022-4580
NVD CVE-2022-4580

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