Security readout for executives and security teams
Plain-English summary
This CVE affects a WordPress add-on used for bulk 301 redirect management. Versions through 1.2.4 did not require authentication for two bulk actions, meaning an outside user could potentially trigger export or clearing behavior without logging in.
Executive priority
Prioritize remediation for public WordPress sites using this plugin, especially sites where redirect integrity affects revenue, SEO, customer access, or security routing.
Technical view
The simple-301-redirects-addon-bulk-uploader plugin through 1.2.4 lacks authentication checks for action=bulk301export and action=bulk301clearlist. The source bundle does not provide CVSS, CWE, detailed impact metrics, or a named fixed version.
Likely exposure
Exposure is limited to WordPress sites with the Simple 301 Redirects Addon - Bulk Uploader plugin installed at version 1.2.4 or earlier.
Exploitation context
CISA KEV is false, and the provided sources do not cite active exploitation. The issue is still externally relevant because the vulnerable actions are described as unauthenticated.
Researcher notes
Evidence is sparse: the CVE description names unauthenticated action access but does not provide CVSS, CWE, patch version, or detailed impact. Avoid assuming broader WordPress compromise from this record alone.
Mitigation direction
- Inventory WordPress sites for this specific plugin and installed version.
- Treat versions 1.2.4 and earlier as affected unless vendor guidance says otherwise.
- Check the WordPress plugin page and vendor advisories for fixed-version guidance.
- Disable or remove the plugin where it is unused or cannot be updated.
- Review redirect-management workflows for unexpected changes or missing entries.
Validation and detection
- Confirm whether the plugin is installed on each WordPress instance.
- Record the plugin version and compare it with the affected range through 1.2.4.
- Review web logs for unexpected requests referencing bulk301export or bulk301clearlist.
- Check redirect lists for unauthorized export indicators or cleared entries.
- Document whether compensating controls restrict unauthenticated access to plugin actions.
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.
CVE-2019-15818 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://wpvulndb.com/vulnerabilities/9503CVE reference · x_refsource_MISC
- https://wordpress.org/plugins/simple-301-redirects-addon-bulk-uploader/#developersCVE reference · x_refsource_MISC
- https://blog.nintechnet.com/unauthenticated-option-changes-in-wordpress-simple-301-redirects-addon-bulk-uploader-plugin/CVE reference · x_refsource_MISC
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.