Answer in brief
CVE-2026-27537 records a Medium severity (CVSS 6.5) vulnerability in WordPress Popup by Supsystic plugin <= 1.11.2 - Cross Site Scripting (XSS) vulnerability. The current sources do not mark it as known exploited. The current feed maps supsystic/Popup by Supsystic (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps supsystic/Popup by Supsystic (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| supsystic/Popup by Supsysticgeneric | n/a | Not reported |
Published upstream
Aug 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 13, 2026
Unauthenticated Cross Site Scripting (XSS) in Popup by Supsystic <= 1.11.2 versions.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-27537 records a Medium severity (CVSS 6.5) vulnerability in WordPress Popup by Supsystic plugin <= 1.11.2 - Cross Site Scripting (XSS) vulnerability. The current sources do not mark it as known exploited. The current feed maps supsystic/Popup by Supsystic (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps supsystic/Popup by Supsystic (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| supsystic/Popup by Supsysticgeneric | n/a | Not reported |
Published upstream
Aug 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 13, 2026
Unauthenticated Cross Site Scripting (XSS) in Popup by Supsystic <= 1.11.2 versions.
Quoted source text, attributed separately from HOL analysis.