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CVE Record

CVE-2023-45759: WordPress Peter’s Custom Anti-Spam Plugin <= 3.2.2 is vulnerable to Cross Site Scripting (XSS)

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Peter Keung Peter’s Custom Anti-Spam plugin <= 3.2.2 versions.

HighCVSS 7.1Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2023-45759 is a reflected cross-site scripting issue in the WordPress Peter’s Custom Anti-Spam plugin through version 3.2.2. An attacker would need a user to interact with crafted content. Business risk is highest for public WordPress sites where this plugin is still installed and reachable.

Executive priority

Treat this as a high-priority WordPress exposure check, not an emergency active-exploitation event based on the supplied evidence. Public sites with the plugin installed should be remediated or have the plugin removed promptly.

Technical view

The source bundle describes unauthenticated reflected XSS, CWE-79, in peters-custom-anti-spam-image <= 3.2.2. CVSS 3.1 is 7.1 with network access, low complexity, no privileges required, user interaction required, changed scope, and low confidentiality, integrity, and availability impact.

Likely exposure

Exposure is likely limited to WordPress sites running Peter’s Custom Anti-Spam at version 3.2.2 or earlier. The bundle does not provide CPEs, install counts, or a confirmed fixed version, so teams must validate actual plugin presence and version.

Exploitation context

The provided sources do not confirm active exploitation, and KEV is false. The vulnerability is reflected XSS, so exploitation depends on user interaction and a reachable vulnerable plugin path. Impact would occur in the victim’s browser context.

Researcher notes

Evidence is concise and leaves gaps: affected version is stated as <= 3.2.2, but no CPEs or fixed version are included in the bundle. Avoid assuming exploit-in-the-wild status or remediation specifics beyond vendor guidance.

Mitigation direction

  • Inventory WordPress sites for the peters-custom-anti-spam-image plugin.
  • Check vendor, WordPress plugin, or Patchstack guidance for a fixed version.
  • Update to a vendor-confirmed fixed release if one is available.
  • Disable or remove the plugin where no safe version is confirmed.
  • Prioritize public sites and administrator-facing workflows first.

Validation and detection

  • Confirm whether Peter’s Custom Anti-Spam is installed on each WordPress site.
  • Record installed plugin versions and flag versions 3.2.2 or earlier.
  • Verify whether a vendor-confirmed fixed release is deployed.
  • Review web logs for suspicious requests targeting plugin-controlled parameters.
  • Confirm no public production site still runs the vulnerable version.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · medium confidence lookup

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 lookup
cve · low confidence lookup

CVE-2023-45759 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
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

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
7.1CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L2.83.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.1High
CVSS 3.1 vector shape for CVE-2023-45759Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Peter KeungPeter’s Custom Anti-Spampeters-custom-anti-spam-image, n/aunaffected
Weakness

CWE details

CWE-79

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.