---
title: "CVE-2026-40805: PeepSo - Arbitrary File Deletion"
description: "PeepSo <= 9.0.5.4 contains an arbitrary file deletion vulnerability caused by improper input validation, letting attackers delete files arbitrarily, exploit requires no special privileges."
url: https://panop.io/threat-heartbeat/CVE-2026-40805/
---

# CVE-2026-40805 PeepSo - Arbitrary File Deletion

PeepSo <= 9.0.5.4 contains an arbitrary file deletion vulnerability caused by improper input validation, letting attackers delete files arbitrarily, exploit requires no special privileges.

CVSS base score 7.7 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.45% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-40805)

## Details

Type

Arbitrary File Deletion

Impact

File System Write

CVSS vector

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

Published

10 October 2026

Updated

15 October 2026

Weakness

[CWE-22](https://cwe.mitre.org/data/definitions/22.html)

## Vendor fix

Update to the latest version beyond 9.0.5.4.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-40805](https://nvd.nist.gov/vuln/detail/CVE-2026-40805)
- [https://patchstack.com/database/wordpress/plugin/peepso/vulnerability/wordpress-peepso-plugin-9-0-5-4-arbitrary-file-deletion-vulnerability?\_s\_id=cve](https://patchstack.com/database/wordpress/plugin/peepso/vulnerability/wordpress-peepso-plugin-9-0-5-4-arbitrary-file-deletion-vulnerability?_s_id=cve)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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