Security readout for executives and security teams
Plain-English summary
CVE-2026-22455 is a reflected cross-site scripting issue in the WordPress Thebe theme through version 1.3.0. An attacker could trick a user into opening a crafted link that runs unwanted script in the user’s browser. This can affect site trust and user sessions, especially for administrators.
Executive priority
Treat as a priority for WordPress owners using Thebe. The issue is high severity but requires user interaction. Focus on confirming theme usage, finding upgrade guidance, and reducing administrator exposure until remediation is clear.
Technical view
The CVE describes CWE-79 improper input neutralization during web page generation in foreverpinetree Thebe. CVSS 3.1 is 7.1, network-accessible, low complexity, no privileges required, user interaction required, and scope changed. The public record identifies affected Thebe versions through 1.3.0.
Likely exposure
Exposure is limited to WordPress sites using the Thebe theme at version 1.3.0 or earlier. Sites not using this theme are not indicated as affected by the provided sources.
Exploitation context
The CVE and Patchstack reference describe reflected XSS. Exploitation requires user interaction, such as visiting an attacker-controlled or crafted URL. The provided sources do not show CISA KEV listing or confirmed active exploitation.
Researcher notes
Public data is limited. The affected range is described as Thebe through 1.3.0, but the bundle’s affected version field is sparse. No exploit details, patch version, or active exploitation evidence were provided. Avoid assuming a fix exists without vendor confirmation.
Mitigation direction
- Inventory WordPress sites for the Thebe theme and record installed versions.
- If Thebe is version 1.3.0 or earlier, check vendor or Patchstack guidance for an update.
- Consider disabling or replacing the theme if no fixed release is available.
- Prioritize sites with administrator access from untrusted networks.
Validation and detection
- Confirm whether the Thebe theme is installed on each WordPress instance.
- Verify the installed Thebe version is newer than 1.3.0, if a fixed version exists.
- Review web logs for unusual requests to Thebe-related pages or parameters.
- Do not perform live XSS testing without authorization and a safe test plan.
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-2026-22455 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
- High
- CVSS
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/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:N/UI:R/S:C/C:L/I:L/A:L2.83.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:N/AC:L/PR:N/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.