Auth. (contributor+) Stored Cross-Site Scripting (XSS) vulnerability in Sumo Social Share Boost plugin <= 4.4 versions.
Conclusion & alert: CVE-2023-23688 is rated Low Risk (39.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.18%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-16 | 0.08% | 0.18% | +0.10% |
| 2 | 2025-11-21 | 0.16% | 0.08% | -0.09% |
| 3 | 2025-11-18 | — | 0.16% | — |
Full EPSS history (5 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
2.3 | 3.7 | [email protected] |
| 5.4 | 3.1 | MEDIUM |
|
2.3 | 2.7 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| sumo | social_share_boost | <= 4.4 | cpe:2.3:a:sumo:social_share_boost:*:*:*:*:*:wordpress:*:* |