Slideshow Gallery < 1.7.4 - Admin+ Stored Cross-Site Scripting

published 2021-11-23 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11794

cvss: 4.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits: 0; none known

The Slideshow Gallery WordPress plugin before 1.7.4 does not sanitise and escape the Slide "Title", "Description", and Gallery "Title" fields, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html is disallowed

Patch / fix

fixed in 1

tribulant slideshow_gallery 1.7.4

Exploit prediction

0.62% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

wpscan.com https://wpscan.com/vulnerability/6d71816c-8267-4b84-9087-191fbb976e72 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 Slideshow Gallery

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

Technology feeds

WordPress rss critical rss

References

wpscan.com /vulnerability/6d71816c-8267-4b84-9087-191fbb976e72
exploit, third-party-advisory

Sources

CVE List CVE-2021-24882
NVD CVE-2021-24882

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