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CVE Record

CVE-2023-7070: Email Encoder – Protect Email Addresses and Phone Numbers <= 2.1.9 - Authenticated (Contributor+) Stored Cross-Site Scripting

The Email Encoder – Protect Email Addresses and Phone Numbers plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's eeb_mailto shortcode in all versions up to, and including, 2.1.9 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

MediumCVSS 6.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

A logged-in WordPress contributor could store malicious script inside content using the Email Encoder plugin shortcode. The script would run when someone views the affected page. This is not a server takeover vulnerability, but it can affect visitor trust, admin sessions, and site integrity.

Executive priority

Treat as a moderate-priority web integrity issue. Prioritize internet-facing WordPress sites, sites with many contributors, and sites where administrator sessions could be exposed by malicious stored content.

Technical view

Email Encoder – Protect Email Addresses and Phone Numbers for WordPress is vulnerable through version 2.1.9. The eeb_mailto shortcode did not sufficiently sanitize user-supplied attributes or escape output, allowing authenticated Contributor+ stored cross-site scripting. CVSS 3.1 score is 6.4, with low attack complexity and changed scope.

Likely exposure

Exposure is most likely on WordPress sites using this plugin at version 2.1.9 or older, especially where Contributor, Author, Editor, or Administrator accounts are numerous, shared, or weakly protected.

Exploitation context

The source bundle does not show active exploitation, and KEV is false. Exploitation requires a logged-in user with Contributor-level or higher permissions who can place the vulnerable shortcode into content that other users later access.

Researcher notes

Evidence identifies insufficient sanitization and escaping around eeb_mailto shortcode attributes, mapped to CWE-79. The provided sources include WordPress plugin source line references and a changeset, but the bundle does not clearly name a fixed release version.

Mitigation direction

  • Check vendor guidance and update beyond version 2.1.9 if a fixed release is available.
  • Disable or remove the plugin if no fixed version is available and exposure is material.
  • Restrict Contributor-level and higher accounts to trusted users only.
  • Review posts and pages containing the eeb_mailto shortcode.
  • Strengthen WordPress account security, especially for content-authoring roles.

Validation and detection

  • Inventory WordPress sites for the Email Encoder plugin and installed version.
  • Confirm whether any installation is version 2.1.9 or older.
  • Review user roles with Contributor, Author, Editor, or Administrator access.
  • Inspect content for eeb_mailto shortcode usage by non-administrator users.
  • Verify remediation against vendor release notes or WordPress plugin change history.
Prepared
Confidence
high
Sources
6

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.

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cve · low confidence lookup

CVE-2023-7070 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
Medium
CVSS
6.4 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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
4Source 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
6.4CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N3.12.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.4Medium
CVSS 3.1 vector shape for CVE-2023-7070Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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
onlineoptimisationEmail Encoder – Protect Email Addresses and Phone Numbers0unaffected
Weakness

CWE details

CWE-79

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.

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