Vulnerability details
CVE-2026-97328
WebP Express
WebP Express < 0.25.16 - Unauthenticated Stored XSS via Alter HTML Parser
CVSS 3.1
7.5High
Official description
The WebP Express WordPress plugin before 0.25.16 does not escape values that its bundled HTML parser re-emits into element attributes when a non-default image delivery mode is enabled, allowing unauthenticated users to submit content that is stored and later executed as Cross-Site Scripting in the browser of any user viewing an affected page, including administrators.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| — | WebP Express | v < 0.25.16 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://wpscan.com/vulnerability/f44cb329-fb2e-4fb1-b878-8b52b0c769cc/ exploitvdb-entrytechnical-description
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Details
- Published
- 2026-10-22
- Last updated
- 2026-10-22
- State
- Published
- Assigner (CNA)
- WPScan
Exploit prediction (EPSS)
0.28%
Probability of exploitation in 30 days
20.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')