Security readout for executives and security teams
Plain-English summary
This vulnerability affects the WordPress Maspik Spam Blacklist plugin. Its IP filtering can be bypassed through spoofing, weakening an anti-spam access control. The expected impact is limited integrity impact, not data theft or outage in the supplied CVSS. Treat it as a moderate web exposure issue for sites using this plugin.
Executive priority
Moderate priority. This is not evidenced as actively exploited in the supplied sources, but unauthenticated remote bypass of a WordPress anti-spam control can increase spam, abuse, and operational noise on exposed sites.
Technical view
CVE-2023-48271 is a CWE-290 authentication bypass by spoofing in yonifre Maspik - Spam blacklist, package contact-forms-anti-spam. Sources state versions through 0.10.3 are affected. CVSS 3.1 is 5.3: network, low complexity, unauthenticated, no user interaction, unchanged scope, integrity low.
Likely exposure
Exposure is likely limited to WordPress sites running Maspik - Spam blacklist/contact-forms-anti-spam at affected versions through 0.10.3. Risk matters most where site operators depend on the plugin's IP filtering to block spam or constrain form-related behavior.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation evidence. The issue is remotely reachable and unauthenticated per CVSS, but the documented impact is limited to bypassing IP filtering rather than full site compromise.
Researcher notes
The source bundle has a version-label inconsistency: the CVE says through 0.10.3, while the Patchstack URL title references 0.9.2. Treat 0.10.3 as the affected upper bound from the CVE data unless vendor guidance clarifies otherwise.
Mitigation direction
- Inventory WordPress sites for contact-forms-anti-spam or Maspik - Spam blacklist usage.
- Identify installed plugin versions and prioritize any through 0.10.3.
- Check vendor, WordPress plugin, and Patchstack guidance for a fixed release or official workaround.
- Reduce reliance on this plugin's IP filtering until remediation is confirmed.
- Consider disabling or removing the plugin where no supported fix is available.
Validation and detection
- Confirm whether the plugin is installed on each WordPress instance.
- Record the exact installed version and compare against affected versions through 0.10.3.
- Review spam-control assumptions that depend on client IP filtering.
- Check security monitoring for unusual form activity after the publication date.
- Track vendor or Patchstack advisories for remediation status.
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-290: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-48271 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
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
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:N/I:L/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
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.
Authentication Bypass by Spoofing
Authentication Bypass by Spoofing represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.