CVE-2026-97328 WebP Express < 0.25.16 - Unauthenticated Stored XSS via Alter HTML Parser
High 7.5
Published
Updated
Check this codebase for CVE-2026-97328 and fix it if it is affected.
What it is: CVE-2026-97328 is a high-severity vulnerability in Unknown WebP Express, published on 22 Oct 2026.
Exploitation: There is no known exploitation of CVE-2026-97328 in the wild and no public exploit code.
Affected product: Unknown WebP Express. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-97328/ (Markdown: https://insights.sbomify.com/CVE-2026-97328/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-97328?
CVE-2026-97328 is a high-severity vulnerability in Unknown WebP Express, published on 22 Oct 2026.
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-97328?
How do I fix CVE-2026-97328?
No fix has been published for CVE-2026-97328 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-97328 being exploited?
There is no known exploitation of CVE-2026-97328 in the wild and no public exploit code.
Sources
Also known as GHSA-3hr8-rx2p-fg8c.