CVE-2026-2505Disclosure

LOWCVSS 5.4 · MEDIUM

Exploitation ongoing with high activity in latest observed window (1 mentions)

Immediate actions

  • Prioritize remediation for affected systems immediately
  • Assume compromise if assets are exposed
  • Track advisory updates for patch or workaround availability

Recommended action window: Immediate (within 24h)

NVD description

The Categories Images plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.3.1, via the 'z_taxonomy_image' shortcode. This is due to the shortcode rendering path passing attacker-controlled class input into a fallback image builder that concatenates HTML attributes without proper escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts that execute when users interact with the injected frontend page via the 'class' shortcode attribute.

3.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

ACTIVE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • Active exploitation appears in 1 classified signals
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Active exploitation reported across 1 signal
  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-04-18); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-04-18: 1Mentions · 2026-04-19: 1Active Exploitation · 2026-04-19: 1Technical Details · 2026-04-18: 104-1804-19
Signal classification2 categories
Disclosure
150.0%
Active Exploitation
150.0%
Referenced assets2 URLs
By indicator
Classification over time
DateTotalLabels
2026-04-181
Disclosure1
2026-04-191
Active Exploitation1
Full discourse2 posts
  • VulDB 🛡@vuldb
    Active Exploitation

    Some increased actor activities are shown targeting elzahlan Categories Images Plugin (CVE-2026-2505) https://vuldb.com/vuln/358194/cti

    Post summary

    The tweet reports that attackers are actively targeting the elzahlan Categories Images Plugin via CVE-2026-2505, but offers no PoC, exploit code, or patch information.

    0000075
    2.1K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-2505 The Categories Images plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.3.1, via the 'z_taxonomy_image' shortcode. T… https://www.cve.org/CVERecord?id=CVE-2026-2505

    Post summary

    CVE-2026-2505 identifies a stored XSS flaw in the Categories Images WordPress plugin (≤3.3.1) triggered through the z_taxonomy_image shortcode, with no PoC, exploit, or patch details provided.

    0000046
    57.2K followersView on X

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