Security readout for executives and security teams
Plain-English summary
CVE-2023-3082 affects the WordPress Post SMTP plugin through version 2.5.7. Untrusted email content can be stored without proper sanitization and later run as script when someone views the affected page. This can expose data or alter actions in the viewer’s browser, especially for privileged WordPress users.
Executive priority
Prioritize remediation on production WordPress sites because unauthenticated input can lead to browser script execution for site users. The highest business concern is compromise of privileged admin sessions or data viewed in affected plugin pages.
Technical view
The issue is stored cross-site scripting, CWE-79, caused by insufficient input sanitization and output escaping of email contents. It is rated CVSS 7.2. The source bundle identifies unauthenticated injection and execution when a user accesses the injected page. Evidence does not show CISA KEV listing or active exploitation.
Likely exposure
Exposure is most likely on WordPress sites running Post SMTP versions up to and including 2.5.7, especially where email logs or email-derived content are accessible to administrators or other users.
Exploitation context
The CVE record says unauthenticated attackers can inject scripts through email contents. The provided sources do not establish active exploitation, public weaponization, or KEV status. Treat exploitability as plausible but unconfirmed in the supplied evidence.
Researcher notes
The source bundle is clear on class, affected upper version, unauthenticated injection, and CVSS. It does not provide exploit telemetry, affected route details, or a named fixed version. Validate remediation against the WordPress changeset or vendor release notes.
Mitigation direction
- Upgrade Post SMTP to a vendor-confirmed fixed version newer than 2.5.7.
- Review the WordPress changeset and vendor guidance for the exact fixed release.
- Limit access to plugin email log views until remediation is complete.
- Remove or sanitize suspicious stored email-log content after upgrade.
- Apply normal WordPress least-privilege controls for administrator access.
Validation and detection
- Inventory all WordPress sites using the Post SMTP plugin.
- Confirm each installed Post SMTP version is newer than 2.5.7.
- Review plugin email logs for suspicious script-like stored content.
- Verify the vendor fix or changeset is present in deployed code.
- Confirm no exposed route renders email content without escaping.
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-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 lookupCVE-2023-3082 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/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:C/C:L/I:L/A:N3.92.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/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.