Simple Popup Plugin <= 4.5 - Authenticated (Contributor+) Stored Cross-Site Scripting
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- 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 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The Simple Popup Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's [popup] shortcode in all versions up to, and including, 4.5 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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 |
|---|---|---|---|---|---|
| grimmdude | Simple Popup Plugin | up to 4.5 | — | No fix listed | CNA |
- Simple Popup Plugin Vendorgrimmdude Affected up to 4.5 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:garrettgrimm:simple_popup_plugin:*:*:*:*:*:wordpress:*:* | up to 4.5 | Vulnerable | Garrett Grimm |
- cpe:2.3:a:garrettgrimm:simple_popup_plugin:*:*:*:*:*:wordpress:*:* Versions up to 4.5 Vulnerable ·Garrett Grimm
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-8547
- 2026-10-03 Alias added: GHSA-rg9r-48rh-6w56
References
More grimmdude vulnerabilities
- TI-2023-10038 WordPress All In One Favicon Plugin <= 4.7 is vulnerable to Arbitrary File Deletion CVSS 3.1MEDIUM 6.8
Sources
- CVE-2024-8547 · CVE Program
- CVE-2024-8547 · NVD
- FIRST EPSS
- GHSA-rg9r-48rh-6w56 · 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