Subscribe Forms 1.4.1 - 1.6.2 - Author+ Stored XSS via Attention Effect Form Setting
Priority LOW 32CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
The Subscribe Forms WordPress plugin before 1.6.3 does not sanitise and escape one of its form settings before outputting it in a page, allowing authenticated users with the Author role and above to perform Stored Cross-Site Scripting attacks that execute in the browser of any visitor who views a page embedding the form, including logged-out visitors and administrators.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00431 37th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Subscribe Forms (Unknown): 1.6.3
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 | Subscribe Forms | 1.4.1 to before 1.6.3 | 1.6.3 | Patch available | CNA |
- Subscribe Forms VendorUnknown Affected 1.4.1 to before 1.6.3 Fixed in 1.6.3 Patch available CNA
Remediation
- Fix · CNA Subscribe Forms (Unknown) Fixed in 1.6.3
Timeline
- 2026-10-02 Threatist record created from CVE-2026-91073
- 2026-10-03 Alias added: GHSA-48ww-7gg7-h943
References
Sources
- CVE-2026-91073 · CVE Program
- CVE-2026-91073 · NVD
- FIRST EPSS
- GHSA-48ww-7gg7-h943 · 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