CVE-2026-97278Network attack vector

PHP object injection

Published Oct 14, 2026 · Updated Oct 14, 2026

PHP object injection in WP SYNTEX Polylang 3.8.9 and earlier allows remote authenticated users to inject PHP objects. The retrieved CNA record identifies untrusted deserialization but does not disclose the affected function or input path, and its linked advisory is inaccessible. High privileges are required; specific downstream effects and additional exploitation conditions are not established by the retrieved evidence.

CVSS severity7.2
High
EPSS probability0.44%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

PHP object injection in WP SYNTEX Polylang 3.8.9 and earlier allows remote authenticated users to inject PHP objects. The retrieved CNA record identifies untrusted deserialization but does not disclose the affected function or input path, and its linked advisory is inaccessible. High privileges are required; specific downstream effects and additional exploitation conditions are not established by the retrieved evidence.

The record

CVE
CVE-2026-97278
Published
Oct 14, 2026
Updated
Oct 14, 2026
Vendor
WP SYNTEX
Product
Polylang
Classifications
CWE-502, CAPEC-586
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.8.9 changes=[{"at":"3.8.10","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

WP SYNTEX · Polylangversion=0 <=3.8.9 changes=[{"at":"3.8.10","status":"unaffected"}]

Published CVSS scores

7.2PatchstackCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
CAPEC-586Object Injection

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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