CVE-2023-2288

Otter - Gutenberg Blocks < 2.2.6 - Author+ PHAR Deserialization

HIGH

8.8

CVSS Score

Published: May 30, 2023 at 07:49 AM UTC

Updated: October 24, 2026 at 01:10 PM UTC

1 product affected across 1 vendorOtter

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Severity

HIGH8.8

Exploit prediction

EPSS 18%

SSVC

PoC

Description

The Otter WordPress plugin before 2.2.6 does not sanitize some user-controlled file paths before performing file operations on them. This leads to a PHAR deserialization vulnerability on PHP < 8.0 using the phar:// stream wrapper.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Otter · Themeislewordpress-plugin

95%

v < 2.2.6

Affected range stops below 2.2.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitVDB EntryTechnical Description

Source: [email protected]

https://wpscan.com/vulnerability/93acb4ee-1053-48e1-8b69-c09dc3b2f302

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCISA-ADP

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-502

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