Smash Balloon Social Post Feed < 4.0.1 - Subscriber+ Arbitrary Plugin Settings Update to Stored XSS
Priority LOW 26CWE-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
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
The Smash Balloon Social Post Feed WordPress plugin before 4.0.1 did not have any privilege or nonce validation before saving the plugin's setting. As a result, any logged-in user on a vulnerable site could update the settings and store rogue JavaScript on each of its posts and pages.
Why it matters now
EPSS 0.00675 52nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Smash Balloon Social Post Feed (Unknown): 4.0.1
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 |
|---|---|---|---|---|---|
| Unknown | Smash Balloon Social Post Feed | 4.0.1 to before 4.0.1 | 4.0.1 | Patch available | CNA |
- Smash Balloon Social Post Feed VendorUnknown Affected 4.0.1 to before 4.0.1 Fixed in 4.0.1 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:smashballoon:smash_balloon_social_post_feed:*:*:*:*:*:wordpress:*:* | before 4.0.1 | Vulnerable | Smash Balloon |
- cpe:2.3:a:smashballoon:smash_balloon_social_post_feed:*:*:*:*:*:wordpress:*:* Versions before 4.0.1 Vulnerable ·Smash Balloon
Remediation
- Fix · CNA Smash Balloon Social Post Feed (Unknown) Fixed in 4.0.1
Timeline
- 2026-10-02 Threatist record created from CVE-2021-24918
- 2026-10-03 Alias added: GHSA-j9qp-w82r-g5cf
References
More Smash Balloon Social Post Feed vulnerabilities
- TI-2022-04092 Smash Balloon Social Post Feed < 4.1.6 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2021-06795 Smash Balloon Social Post Feed < 2.19.2 - Unauthenticated Stored XSS CVSS 3.1MEDIUM 6.1
- TI-2021-07343 Smash Balloon Social Post Feed < 4.1.1 - Authenticated Reflected Cross-Site Scripting (XSS) CVSS 3.1MEDIUM 5.4
Sources
- CVE-2021-24918 · CVE Program
- CVE-2021-24918 · NVD
- FIRST EPSS
- GHSA-j9qp-w82r-g5cf · 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