CVE-2026-89330
CVE-2026-89330 — EmbedPress <= 4.6.5 - Reflected Cross-Site Scripting via 'hash' and 'unique' Parameters
The EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'unique' parameter in all versions up to, and including, 4.6.5 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. This is a regression: the esc_url() wrapper that remediated the equivalent CVE-2023-5749 in version 3.9.2 was removed in version 4.3.0 during a refactor that introduced the 'unique' parameter.
Published Updated Sources: cvelistV5, Wordfence
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.
Exploitation
Unreported
no source claims exploitation
EPSS
0%
chance of exploitation in 30 days
Affects
embedpress_pdf_embedder_3d_pdf_flipbook_google_reviews_youtube_videos_upload_embed_pdf_documents
CVSS base
6.1
MEDIUM
CISA SSVC assessment
Three decision points CISA publishes for the CVEs it assesses · SSVC 2.0.3. A stakeholder decision, not a severity score.
Exploitation
None
none · proof-of-concept · active
Automatable
No
can an attacker script all four kill-chain steps
Technical impact
Partial
partial · total control of the vulnerable component
Affected scope
The catalog records vendors and products as separate lists, not pairs, so which product belongs to which vendor is not something this page can say.
Vendors (1)
Products (1)
Every base score collected
Sources score independently and disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Source |
|---|---|---|---|---|---|
| 6.1 | CVSS 3.1 | MEDIUM | — | — | cvelistV5 |
Weakness & attack patterns
- CWE-79
References
5 on the record
- www.wordfence.com/threat-intel/vulnerabilities/id/d8b0f381-c07c-4560-bb5c-3a6aee442390?source=cve
reference
- plugins.trac.wordpress.org/browser/embedpress/tags/4.6.5/EmbedPress/Includes/Classes/Feature_Enhancer.php#L1737
reference
- plugins.trac.wordpress.org/browser/embedpress/tags/4.6.5/EmbedPress/Includes/Classes/Feature_Enhancer.php#L1642
reference
- plugins.trac.wordpress.org/browser/embedpress/tags/4.6.5/EmbedPress/Includes/Classes/Feature_Enhancer.php#L1745
reference
- plugins.trac.wordpress.org/changeset?reponame=&old=3696560%40embedpress&new=3696560%40embedpress
reference
Elsewhere on this site
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.