Live Exposure Defense: From CVE to Confirmed Exposure in 12 Hours – See more

Back
New CVE Detected

CVE-2026-73343 – Unauthenticated Remote Code Execution – WP Compress WordPress Plugin < 7.20.01

Be the first to know when new zero-days emerge:

Subscribe to Email Alerts
Subscribe to RSS Feed

Summary

CVE-2026-73343 is a critical unauthenticated Remote Code Execution (RCE) vulnerability in the WP Compress WordPress plugin (wp-compress-image-optimizer) developed by AresIT. The flaw is classified as CWE-94 (Improper Control of Generation of Code / Code Injection) and carries a maximum CVSS v3.1 base score of 10.0. It affects all WP Compress plugin versions prior to 7.20.01.

Technical details

  • Root cause: improper control of code generation within the plugin, classified under CWE-94 (Code Injection), enabling execution of attacker-supplied code (CAPEC-253: Remote Code Inclusion).
  • Trigger conditions: no authentication or user interaction is required to exploit the vulnerability.
  • Attack vector: Network — the plugin’s exposed functionality can be reached remotely over HTTP(S) on any WordPress site running the vulnerable plugin version.
  • Impact: full compromise of confidentiality, integrity, and availability of the affected WordPress site, consistent with arbitrary code execution on the underlying server.

Affected software

  • WP Compress (wp-compress-image-optimizer) WordPress plugin, developed by AresIT
  • All versions prior to 7.20.01

Severity

  • CVSS v3.1 Base Score: 10.0 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Upgrade the WP Compress plugin to version 7.20.01 or later, where the vulnerability has been fixed.
  • If immediate patching is not possible: disable and remove the WP Compress plugin from affected WordPress installations until the update can be applied. There is no documented network-level workaround for this issue, so patching remains the primary remediation path.

How IONIX identifies potentially affected assets

IONIX matches the following signal against data already collected when it crawled the asset; identifying the technology sends no request beyond that crawl.

  • Raw response body: /wp-content/plugins/wp-compress-image-optimizer/

References

Are you exposed?

Get a free report of your organization’s exposure to this CVE and threat

  • Mapping of all Assets with this Technology
  • Identification of potentially exposed assets to this CVE
  • Confirmation of verified exploitable assets
Get Exposure Report

How IONIX’s External Exposure Management Platform Detects and Validates
Zero-Days to Shrink MTTR

1

Map your entire attack surface (continously)

IONIX uses multi-factor discovery methods, including DNS analysis, certificate mapping, metadata inspection, and more, to automatically map every internet-facing asset across your environment. This includes cloud instances, third-party platforms, shadow IT, and even forgotten infrastructure that traditional tools miss.

2

Monitor for new CVEs

Dozens of threat intel feeds using agentic technology are continuously analyzed to detect the appearance of proof-of-concept code, exploit kits, and indicators of active targeting. IONIX goes further by applying AI to proactively evaluate whether emerging vulnerabilities are likely to be exploited, even before PoCs go public.

3

Identify Potential External Exposures

Not all CVEs matter. IONIX filters vulnerabilities by asking attacker-centric questions: Can it be reached from the internet? Does it require authentication? Is it being exploited in the wild? This dramatically reduces noise and focuses teams on threats that can actually be weaponized.

4

Create Safe, Scalable Exploit Validations

IONIX transforms real-world PoCs into safe, non-intrusive test payloads that can be run in production environments without disruption. These simulations are precisely targeted to the systems that are vulnerable, ensuring rapid validation without unnecessary load.

5

Execute Exploit Validations

By combining context about software stack, versioning, exposure status, and reachability, IONIX ensures that only the right payloads are executed against the right assets, maximizing efficiency and minimizing risk.

6

Drive Fast and Actionable Remediation

Results are routed through integrations with ticketing, SOAR, and SIEM tools. Issues are written in plain language, bundled into remediation clusters, and prioritized based on asset criticality, exploitability, and blast radius. This shortens mean time to remediation (MTTR) and empowers teams to act with confidence.

Are you exposed?

Get a free report of your organization’s exposure to this CVE and threat

  • Mapping of all Assets with this Technology
  • Identification of potentially exposed assets to this CVE
  • Confirmation of verified exploitable assets
Get Exposure Report
Close

Subscribe to Threat Center RSS

Copy/paste the link below into your preferred RSS reader or follow these instructions to subscribe to Slack alerts.

Open RSS feedSlack setup instructions

Close

Get Real-Time CVE Alerts to Your Email

Be the first to know when new zero-days emerge