NextScripts: Social Networks Auto-Poster <= 4.3.20 Reflected Cross-Site Scripting
Priority LOW 29CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The NextScripts: Social Networks Auto-Poster <= 4.3.20 WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the $_REQUEST['page'] parameter which is echoed out on inc/nxs_class_snap.php by supplying the appropriate value 'nxssnap-post' to load the page in $_GET['page'] along with malicious JavaScript in $_POST['page'].
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00873 59th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| nextscripts | NextScripts: Social Networks Auto-Poster | 4.3.20 – 4.3.20 | — | No fix listed | CNA |
- NextScripts: Social Networks Auto-Poster Vendornextscripts Affected 4.3.20 – 4.3.20 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nextscripts:social_networks_auto_poster:*:*:*:*:*:wordpress:*:* | up to 4.3.20 | Vulnerable | nextscripts |
- cpe:2.3:a:nextscripts:social_networks_auto_poster:*:*:*:*:*:wordpress:*:* Versions up to 4.3.20 Vulnerable ·nextscripts
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-38356
- 2026-10-03 Alias added: GHSA-c4v2-74rr-g59c
References
More nextscripts Social Networks Auto Poster vulnerabilities
- TI-2024-01944 NextScripts: Social Networks Auto-Poster <= 4.4.3 - Authenticated(Subscriber+) Sensitive Information Exposure CVSS 3.1HIGH 8.5
- TI-2024-24790 WordPress NextScripts plugin <= 4.4.7 - Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2023-26842 WordPress NextScripts Plugin <= 4.4.2 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1HIGH 7.1
- TI-2021-07254 NextScripts: Social Networks Auto-Poster < 4.3.24 - Unauthenticated Stored XSS CVSS 3.1MEDIUM 6.1
- TI-2019-07283 The social-networks-auto-poster-facebook-twitter-g plugin before 4.2.8 for WordPress has… CVSS 3.1MEDIUM 6.1
- TI-2021-07350 NextScripts: Social Networks Auto-Poster < 4.3.25 - Arbitrary Post Deletion via CSRF CVSS 3.1MEDIUM 6.5
Sources
- CVE-2021-38356 · CVE Program
- CVE-2021-38356 · NVD
- FIRST EPSS
- GHSA-c4v2-74rr-g59c · 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