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CVE-2026-97328

WebP Express < 0.25.16 - Unauthenticated Stored XSS via Alter HTML Parser

CVSS score

—

EPSS probability

—

Risk score

—

Published

3 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

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Vulnerability description

DayBreach AI Explanation

Verified against sources

WebP Express < 0.25.16 – Unauthenticated Stored XSS

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%53

Short explanation

Versions of the WebP Express plugin prior to 0.25.16 fail to escape values re‑emitted into HTML attributes when a non‑default image delivery mode is enabled, resulting in an unauthenticated stored XSS vulnerability.

Why does it matter?

Stored XSS lets an attacker run malicious code in any visitor’s browser, including administrators.

What should be done?

  • Upgrade WebP Express to version 0.25.16 or later
  • Disable non‑default image delivery mode
  • Sanitize and escape user‑controlled input
  • Monitor vendor advisories and security bulletins
  • Scan the site regularly for malicious content
Note on uncertainty

The sources give limited detail on some technical conditions. Review the chain of evidence below before deciding how to act.

Chain of evidence and sources3 verified claims

WebP Express eklentisinin 0.25.16 öncesi sürümleri, kimlik doğrulaması gerektirmeyen depolanmış XSS açığı içerir (S0, S1).

S0 · daybreach-canonicalS1 · cvelist

Bu açık, varsayılan dışı görüntü teslim modu etkin olduğunda herhangi bir kimlik doğrulaması gerektirmeyen kullanıcının içerik göndermesine dayanır (S0, S1).

S0 · daybreach-canonicalS1 · cvelist

Yama durumu resmi kaynaklarda doğrulanamadı; durum UNKNOWN olarak rapor edilmiştir (S0).

S0 · daybreach-canonical
Show the technical text from the sources

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.

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-97328 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1UnknownWebP Express View
Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
The sources have not yet published a verified CVSS metric.

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-97328 is associated with the following CWEs:

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CWE-20: Improper Input Validation

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-97328 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Official Sources and Advisories

https://wpscan.com/vulnerability/f44cb329-fb2e-4fb1-b878-8b52b0c769cc/vendor-advisory

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

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CVE-2026-97328 · WebP Express < 0.25.16 - Unauthenticated…