SlideOnline <= 1.2.1 - Contributor+ Stored XSS
Priority LOW 25Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
The SlideOnline WordPress plugin through 1.2.1 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00444 38th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and 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 |
|---|---|---|---|---|---|
| Unknown | SlideOnline | up to 1.2.1 | — | No fix listed | CNA |
- SlideOnline VendorUnknown Affected up to 1.2.1 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:slideonline_project:sideonline:*:*:*:*:*:wordpress:*:* | up to 1.2.1 | Vulnerable | Slideonline Project |
- cpe:2.3:a:slideonline_project:sideonline:*:*:*:*:*:wordpress:*:* Versions up to 1.2.1 Vulnerable ·Slideonline Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-0489
- 2026-10-03 Alias added: GHSA-hx29-qp2m-x88c
References
Sources
- CVE-2023-0489 · CVE Program
- CVE-2023-0489 · NVD
- FIRST EPSS
- GHSA-hx29-qp2m-x88c · 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