Security readout for executives and security teams
Plain-English summary
CVE-2021-38324 affects the SP Rental Manager WordPress plugin up to and including version 1.5.3. A public website using this plugin may allow an unauthenticated attacker to read information from the site database through a vulnerable sorting parameter.
Executive priority
Treat this as high priority for any internet-facing WordPress property using SP Rental Manager. The main business risk is database information exposure without authentication, especially on sites storing customer, booking, or operational records.
Technical view
The issue is CWE-89 SQL injection in the plugin's orderby handling in user/shortcodes.php. The CVSS 3.1 score is 8.2: network reachable, low complexity, no privileges, no user interaction, high confidentiality impact, and low availability impact.
Likely exposure
Exposure is most likely on WordPress sites with SP Rental Manager version 1.5.3 or earlier installed and public pages rendering the affected shortcode functionality.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. The vulnerability is unauthenticated and low complexity, so exposed public WordPress sites should be treated as a credible risk.
Researcher notes
Evidence identifies the vulnerable parameter and file path but does not provide a confirmed fixed version in the supplied bundle. Validate exposure through version inventory and passive review before any testing, and avoid assuming exploitation without telemetry or KEV evidence.
Mitigation direction
- Inventory WordPress sites for SP Rental Manager installations and versions.
- Check Wordfence and plugin vendor guidance for a fixed or supported release.
- Prioritize removing or replacing unsupported vulnerable plugin versions.
- Restrict public access to affected rental listing pages where business feasible.
- Review web application firewall coverage for SQL injection detection.
Validation and detection
- Confirm whether SP Rental Manager version 1.5.3 or earlier is installed.
- Identify public pages that render SP Rental Manager shortcode functionality.
- Review logs for unusual requests involving SP Rental Manager listing sorting parameters.
- Verify remediation by confirming vulnerable versions are absent from production.
- Document any exposed sites that cannot be remediated immediately.
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-89: Database access and collection lookup
Injection into data stores can inform collection, data access, and exfiltration detection reviews. 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 lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-38324 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
- 8.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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:N/S:U/C:H/I:N/A:L3.94.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.2HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/vulnerability-advisories/#CVE-2021-38324CVE reference · x_refsource_MISC
- https://plugins.trac.wordpress.org/browser/sp-rental-manager/tags/1.5.3/user/shortcodes.php#L389CVE 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.
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.