VulnSocial

CVE-2026-3620Disclosure

LOWCVSS 4.4 · MEDIUM

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft
  • Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

The Word Replacer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'replacement' parameter in all versions up to, and including, 0.4. This is due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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1.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-20

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Threat summary

  • Public PoC is present in monitored signal
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • PoC mentioned or linked in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-06-02); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-06-02: 1Mentions · 2026-06-03: 1PoC Mentioned / Linked · 2026-06-03: 1Technical Details · 2026-06-02: 1Technical Details · 2026-06-03: 106-0206-03
Signal classification2 categories
Disclosure
150.0%
PoC
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-06-021
Disclosure1
2026-06-031
PoC1
Full discourse2 posts
  • Atomic Edge@atomicedgeWAF
    PoC

    https://atomicedge.io/cve-proof/cve-2026-3620-word-replacer-version-0-4-medium-vulnerability-proof-of-concept CVE-2026-3620 word-replacer (CVSS Score 4.4) #WordPress plugin #vulnerability #cybersecurity #wordpressfirewall #wordpresssecurity #hacking #wpsecurity #atomicedge

    Post summary

    The post reveals a proof‑of‑concept for CVE‑2026‑3620, a medium‑severity vulnerability in the WordPress Word‑Replacer plugin, stating its CVSS score but providing no active exploitation or patch details.

    0000036
    6 followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-3620 Stored Cross-Site Scripting in Word Replacer WordPress Plugin Versions Up to 0.4 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-3620

    Post summary

    CVE-2026-3620 is a disclosed stored XSS vulnerability affecting Word Replacer WordPress plugin versions up to 0.4, with technical details provided but no PoC, exploit, active exploitation claims, or patch information.

    0000056
    4.0K followersView on X

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