The all-in-one-seo-pack plugin before 3.2.7 for WordPress (aka All in One SEO Pack) is…
Priority LOW 28CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
The all-in-one-seo-pack plugin before 3.2.7 for WordPress (aka All in One SEO Pack) is susceptible to Stored XSS due to improper encoding of the SEO-specific description for posts provided by the plugin via unsafe placeholder replacement.
Why it matters now
EPSS 0.01532 74th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:semperplugins:all_in_one_seo_pack:*:*:*:*:*:wordpress:*:* | before 3.2.7 | Vulnerable | Semper Plugins, LLC |
- cpe:2.3:a:semperplugins:all_in_one_seo_pack:*:*:*:*:*:wordpress:*:* Versions before 3.2.7 Vulnerable ·Semper Plugins, LLC
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-16520
- 2026-10-03 Alias added: GHSA-m78p-fvq8-rg9f
References
Exploit 2
More Semper Plugins, LLC All In One Seo Pack vulnerabilities
- TI-2013-05102 A Cross-site Scripting (XSS) vulnerability exists in the All in One SEO Pack plugin… CVSS 3.1MEDIUM 6.1
- TI-2020-18387 An issue was discovered in the All in One SEO Pack plugin before 3.6.2 for WordPress. CVSS 3.1MEDIUM 5.4
Sources
- CVE-2019-16520 · CVE Program
- CVE-2019-16520 · NVD
- FIRST EPSS
- GHSA-m78p-fvq8-rg9f · 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