CVE-2026-89413Disclosure

LOWCVSS 8.1 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

The Filter Gallery plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.1.4. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete any arbitrary Filter Gallery records — including all associated filters, image mappings, settings, and details options — by supplying attacker-controlled gallery IDs. The nonce bypass requires omitting the nonce POST field entirely rather than submitting an invalid value, as a present-but-invalid nonce is correctly rejected.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-862

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-09-18: 2Patch / Workaround · 2026-09-18: 1Technical Details · 2026-09-18: 109-18
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets2 URLs
Full discourse2 posts
  • Rıdvan Yağlı@ridvanyagli
    Patch

    🔴 WordPress Filter Gallery eklentisinde CVE-2026-89413 (CVSS 8.1) yetkilendirme açığı bulundu. 1.1.4 ve öncesini etkileyen açık, Subscriber ve üzeri yetkiye sahip kimliği doğrulanmış saldırganların ufg_gallery_id parametresi üzerinden yetkileri dışındaki galerileri; filtreler, image mapping'leri ve ayarlarıyla birlikte silmesine olanak sağlıyor. Yamalanmış sürüm: 1.1.5 Hemen güncelleyin: https://wordpress.org/plugins/filter-gallery/

    Post summary

    The text discloses CVE-2026-89413, an authorization bypass vulnerability in WordPress Filter Gallery (CVSS 8.1) affecting versions ≤1.1.4, and explicitly names patched version 1.1.5 with an immediate update call.

    00021290
    2.5K followersView on X
  • CERT-PY@CERTpy
    Disclosure

    ⚠️ Vulnerabilidades en productos de WordPress ❗ CVE-2026-89413 ❗ CVE-2026-17086 ➡️ Más info: https://www.cert.gov.py/vulnerabilidades-en-productos-de-wordpress-2/ https://t.co/3rTB5mxSHd

    Post summary

    The text announces two WordPress-related CVEs (CVE-2026-89413 and CVE-2026-17086) and links to a CERT Paraguay advisory page, but provides no PoC, exploit code, patch, or technical vulnerability details within the text itself.

    00000256
    6.7K followersView on X

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