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CVE Record

CVE-2022-3135: SEO Smart Links <= 3.0.1 - Admin+ Stored Cross-Site Scripting

The SEO Smart Links WordPress plugin through 3.0.1 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

MediumCVSS 4.8Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

SEO Smart Links for WordPress through 3.0.1 can store unsafe script content in some plugin settings. The attacker must already have high privileges, such as administrator, but this matters in multisite or delegated-admin environments where administrators may not be allowed to post unfiltered HTML.

Executive priority

Treat as a moderate-priority hygiene issue, not an emergency, unless the plugin is used in multisite or delegated-admin environments. Prioritize inventory and removal or vendor-confirmed remediation.

Technical view

The plugin does not sanitize and escape some settings, creating stored cross-site scripting under CWE-79. CVSS 3.1 is 4.8: network reachable, low complexity, high privileges required, user interaction required, changed scope, low confidentiality and integrity impact, no availability impact.

Likely exposure

Exposure is limited to WordPress installations running SEO Smart Links version 3.0.1 or earlier. Highest concern is multisite or shared administration where high-privilege users are intentionally restricted from unfiltered HTML.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation requires a high-privilege authenticated user and later user interaction with the stored content path.

Researcher notes

Evidence is limited to the CVE description, CVSS vector, and WPScan reference. No exploit code, active exploitation, or fixed version is provided in the bundle. Avoid assuming impact beyond admin-level stored XSS in plugin settings.

Mitigation direction

  • Inventory WordPress sites for SEO Smart Links installations.
  • Confirm whether installed versions are 3.0.1 or earlier.
  • Check vendor or WPScan guidance for fixed versions or official remediation.
  • Remove or disable the plugin where it is not required.
  • Restrict plugin settings access to trusted administrators only.
  • Review multisite admin delegation for untrusted high-privilege users.

Validation and detection

  • Check plugin version on each WordPress instance.
  • Verify whether SEO Smart Links is active or merely installed.
  • Review who can access the plugin settings page.
  • Confirm multisite unfiltered_html restrictions are relied upon.
  • Look for unexpected script-like content in plugin settings.
  • Document remediation status per affected site.
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-2022-3135 mapping review

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

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.8 (3.1)
Known Exploited
No
Published

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

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
4.8CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N1.72.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

4.8Medium
CVSS 3.1 vector shape for CVE-2022-3135Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
UnknownSEO Smart Links3.0.1Listed
Weakness

CWE details

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

CWE-79 · source CWE mapping

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.