Cyber Resilience

CVE-2023-6812

Open Redirect in Wpcompress Wp Compress ≤ 6.20.02

Open Redirect
Published
14 May 2024
Modified
08 April 2026
Patch / advisory
View advisory
CVSS Score v3.1 4.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS Score 0.0044 36th percentile
Risk Priority 37 floored blend · peak EPSS

Summary

CVE-2023-6812 is a medium-severity Open Redirect (CWE-601) vulnerability in Wpcompress Wp Compress. Its CVSS base score is 4.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Phishing (T1566); ranked at the 36th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) and AC-4 (Information Flow Enforcement) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

The WP Compress – Image Optimizer [All-In-One plugin for WordPress is vulnerable to Open Redirect in all versions up to, and including, 6.20.01. This is due to insufficient validation on the redirect url supplied via the 'css' parameter. This makes…

more

it possible for unauthenticated attackers to redirect users to potentially malicious sites if they can successfully trick them into performing an action.

CWE(s)
CWE-601

Related Threats

MITRE ATT&CK Enterprise Techniques

T1566 Phishing Initial Access
Adversaries may send phishing messages to gain access to victim systems.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-4445Same product: Wpcompress Wp Compress
CVE-2025-47479Same product: Wpcompress Wp Compress
CVE-2025-2109Same product: Wpcompress Wp Compress
CVE-2025-47546Same product: Wpcompress Wp Compress
CVE-2024-32106Same product: Wpcompress Wp Compress
CVE-2024-1934Same product: Wpcompress Wp Compress
CVE-2024-47384Same product: Wpcompress Wp Compress
CVE-2023-6699Same product: Wpcompress Wp Compress
CVE-2024-12047Same product: Wpcompress Wp Compress
CVE-2025-2110Same product: Wpcompress Wp Compress

Affected Assets

wpcompress
wp compress
≤ 6.20.02

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V3.7.2

Mitigating Controls (NIST 800-53 r5) AI

SI-10 Information Input Validation good match

Input validation directly checks and rejects untrusted redirect targets before they are used in a response.

AC-4 Information Flow Enforcement partial match

Information flow enforcement can restrict redirects to only approved/trusted destinations, stopping untrusted user-supplied URLs from being followed.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require input validation and untrusted-redirect controls that prevent CWE-601.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.23 Web filtering partial match
mitigates

Preventing access to attacker-controlled or malicious sites stops users from being redirected to untrusted locations via open-redirect or phishing links.

References