CVE-2026-14833 json
Lightbox with PhotoSwipe < 5.9.0 - Author+ Stored XSS via data-lbwps-caption Attribute
published 2026-07-31 3 mo ago modified 2026-08-26 2 mo ago also EUVD-2026-51412
- cvss
- 6.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 37%
- public exploits
- 0
- none known
Summary
The Lightbox with PhotoSwipe WordPress plugin before 5.9.0 does not sanitise or escape a link data attribute before rendering it into the image lightbox caption in the browser, allowing users with author-level access and above (who lack the unfiltered_html capability) to store JavaScript that runs when a visitor or administrator opens the lightbox.
Patch / fix
- Unknown Lightbox with PhotoSwipe 5.9.0
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/aae59cb8-b259-464e-a86b-164d89f61342/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 6.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H |
Affected products
- Unknown Lightbox with PhotoSwipe
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wpscan.com
/vulnerability/aae59cb8-b259-464e-a86b-164d89f61342/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-14833
- NVD CVE-2026-14833
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.