Security readout for executives and security teams
Plain-English summary
CVE-2026-25355 is a stored cross-site scripting issue in the WordPress Sanzo theme before version 2.4.3. An attacker with low-level access could store malicious script content that runs when another user views the affected page. This can expose data or alter site behavior within the victim’s browser.
Executive priority
Prioritize remediation for public WordPress sites using Sanzo, especially sites with multiple contributors or customer-facing pages. This is not marked as actively exploited, but stored XSS can affect users and administrators who view compromised content.
Technical view
The CVE describes CWE-79 improper input neutralization during web page generation in skygroup Sanzo. CVSS 3.1 is 6.5: network exploitable, low complexity, low privileges required, user interaction required, changed scope, and low confidentiality, integrity, and availability impact. Public sources do not identify the exact vulnerable parameter or workflow.
Likely exposure
Exposure is limited to WordPress sites using the Sanzo theme earlier than 2.4.3. Sites without this theme, or already on 2.4.3 or later, are not indicated as affected by the provided sources.
Exploitation context
The issue is stored XSS, so malicious content may persist and execute when a user views affected content. The CVSS vector indicates attacker privileges and victim interaction are required. The provided sources and KEV status do not indicate known active exploitation.
Researcher notes
Public detail is limited. The CVE and Patchstack entry identify Sanzo before 2.4.3 as affected and classify the flaw as stored XSS. No exploit code, affected parameter, or confirmed exploitation is provided in the supplied sources.
Mitigation direction
- Inventory WordPress sites for the Sanzo theme.
- Update Sanzo to version 2.4.3 or later if available.
- If updating is not possible, check vendor or Patchstack guidance.
- Restrict low-privileged content editing access until remediated.
- Review stored site content for unexpected scripts or markup.
Validation and detection
- Confirm whether the Sanzo theme is installed and active.
- Verify the installed Sanzo version is 2.4.3 or later.
- Check WordPress user roles with content or theme editing permissions.
- Review security plugin or WAF alerts for XSS indicators.
- Document remediation status for each affected site.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-25355 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L2.33.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Source materials
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.