Advanced Excerpt < 4.5 - Admin+ Stored XSS via Ellipsis Setting
Priority MEDIUM 55CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
The Advanced Excerpt WordPress plugin before 4.5 does not sanitise and escape one of its settings before outputting it on the front end of the site, which could allow administrators (including those without the unfiltered_html capability, such as on multisite) to perform Stored Cross-Site Scripting attacks that execute in the context of any visitor viewing affected pages.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00242 15th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Advanced Excerpt (Unknown): 4.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Advanced Excerpt | before 4.5 | 4.5 | Patch available | CNA |
- Advanced Excerpt VendorUnknown Affected before 4.5 Fixed in 4.5 Patch available CNA
Remediation
- Fix · CNA Advanced Excerpt (Unknown) Fixed in 4.5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-13701
- 2026-10-03 Alias added: GHSA-vgj5-89vw-rww2
References
Sources
- CVE-2026-13701 · CVE Program
- CVE-2026-13701 · NVD
- FIRST EPSS
- GHSA-vgj5-89vw-rww2 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences