FooBox (Free and Premium) < 2.7.28 - Admin+ Stored XSS

published 2024-06-18 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-31866

cvss: 6.1; 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 27%
public exploits: 0; none known

The Lightbox & Modal Popup WordPress Plugin WordPress plugin before 2.7.28, foobox-image-lightbox-premium WordPress plugin before 2.7.28 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup).

Patch / fix

fixed in 4

Unknown Lightbox & Modal Popup WordPress Plugin 2.7.28
Unknown foobox-image-lightbox-premium 2.7.28
fooplugins lightbox_and_modal_popup 2.7.28
fooplugins foobox-image-lightbox-premium 2.7.28

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-07-01)

Exploit prediction

0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

wpscan.com https://wpscan.com/vulnerability/996d3247-ebdd-49d1-a1a3-ceedcf9f2f95/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	3.1	4.8	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
CNA	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products

Unknown Lightbox & Modal Popup WordPress Plugin
Unknown foobox-image-lightbox-premium
fooplugins lightbox_and_modal_popup
fooplugins foobox-image-lightbox-premium

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

Technology feeds

WordPress rss critical rss

References

wpscan.com /vulnerability/996d3247-ebdd-49d1-a1a3-ceedcf9f2f95/
exploit, vdb-entry, technical-description, third-party-advisory

Sources

CVE List CVE-2024-3276
NVD CVE-2024-3276

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