Security readout for executives and security teams
Plain-English summary
This is a reflected cross-site scripting issue in the WordPress This Day In History plugin through 3.10.1. An unauthenticated attacker could target a user who clicks or visits attacker-controlled content, potentially affecting that user’s browser session and site trust.
Executive priority
Treat this as a high-priority WordPress plugin exposure, especially on public sites. It is not confirmed as actively exploited in the provided sources, but reflected XSS can harm users, administrators, and brand trust if left unresolved.
Technical view
CVE-2023-34026 is CWE-79 reflected XSS in BrokenCrust This Day In History for WordPress, reported for versions <= 3.10.1. CVSS 3.1 is 7.1 with network access, low complexity, no privileges, required user interaction, changed scope, and low C/I/A impact.
Likely exposure
Exposure is limited to WordPress sites running the This Day In History plugin at version 3.10.1 or earlier. The provided bundle does not identify affected CPEs, install base, or a fixed version.
Exploitation context
The bundle does not show CISA KEV listing or any cited evidence of active exploitation. Practical exploitation depends on user interaction, consistent with reflected XSS rather than automatic server compromise.
Researcher notes
Evidence is sparse: the sources identify unauthenticated reflected XSS and version <= 3.10.1, but do not provide exploit status, affected parameters, proof-of-concept details, or a named fixed version. Avoid assuming broader products or remediation specifics.
Mitigation direction
- Inventory WordPress sites for the This Day In History plugin.
- Identify any instances running version 3.10.1 or earlier.
- Check vendor or Patchstack guidance for a fixed release or official mitigation.
- Disable or remove the plugin where it is not business-critical.
- Prioritize externally accessible WordPress sites first.
Validation and detection
- Confirm plugin presence and version from WordPress administration or asset inventory.
- Verify whether affected pages are publicly reachable.
- Review web security telemetry for suspicious reflected-XSS probes against affected pages.
- Confirm remediation by rechecking plugin version or removal status.
- Document any sites awaiting vendor guidance or business approval.
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-2023-34026 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.
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.