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PatchSiren cyber security CVE debrief

CVE-2019-25779 WooThemes CVE debrief

CVE-2019-25779 WooThemes Diarise 1.5.9 Local File Disclosure via download.php allows unauthenticated attackers to read arbitrary files through the calendar parameter. This vulnerability enables attackers to access sensitive files, potentially leading to information disclosure. Defenders should assess exposure and prioritize patching to mitigate potential risks. The vulnerability was first observed by the Shadowserver Foundation on 2023-10-19. Affected product deployments should be identified, and owners assigned for follow-up.

Vendor
WooThemes
Product
Diarise
CVSS
HIGH 8.7
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-22
Original CVE updated
2026-10-22
Advisory published
2026-10-22
Advisory updated
2026-10-22

Who should care

Defenders and administrators of WooThemes Diarise installations should assess exposure and prioritize patching. Operators, platforms, and security teams may be impacted by potential information disclosure. Vulnerability management and security teams should review official advisories and monitor for suspicious requests. Affected asset owners should verify and document evidence of exploitation attempts.

Why it matters

CVE-2019-25779 allows unauthenticated attackers to read arbitrary files via the calendar parameter in download.php. Defenders should assess exposure, prioritize patching, and monitor for suspicious requests.

  • Sensitive file disclosure possible
  • Unauthenticated access to arbitrary files
  • Potential for reconnaissance and further exploitation

Technical summary

The WooThemes Diarise plugin through version 1.5.9 contains a file read vulnerability in download.php. Unauthenticated attackers can send GET requests with file:// scheme paths to the calendar parameter to disclose sensitive files. This vulnerability can lead to information disclosure and potential further exploitation. Affected product context indicates a need for defenders to assess exposure and prioritize patching. Source-grounded technical framing suggests a need for caution when handling file requests via download.php.

Defensive priority

Assess exposure, prioritize patching

Recommended defensive actions

  • Review and patch WooThemes Diarise version 1.5.9
  • Restrict access to download.php
  • Monitor for suspicious requests to download.php
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The vulnerability allows unauthenticated file disclosure via the calendar parameter in download.php. Evidence from Packet Storm and CXSecurity suggests exploitation attempts. The Shadowserver Foundation first observed exploitation on 2023-10-19. Defenders should verify affected scope and review official advisories for validation. Source grounding indicates a file read vulnerability in WooThemes Diarise 1.5.9.

Sources and references

Verified primary and authoritative sources

  • CVE-2019-25779 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2019-25779

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2019-25779 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2019-25779

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • WooThemes Diarise 1.5.9 Local File Disclosure via download.php

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2019/25xxx/CVE-2019-25779.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://packetstorm.news/files/id/152773/

    Supplemental source - exploit

  • Source reference

    Unverified legacy reference

    URL: https://cxsecurity.com/issue/WLB-2019050123

    Supplemental source - exploit

  • Source reference

    Unverified legacy reference

    URL: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/wordpress/diarise-theme-lfi.yaml

    Supplemental source - technical-description

  • Source reference

    Unverified legacy reference

    URL: https://www.vulncheck.com/advisories/woothemes-diarise-1.5.9-local-file-disclosure-via-download-php

    Supplemental source - third-party-advisory

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.