CVE-2026-6048Disclosure

LOWCVSS 6.4 · 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 Flipbox Addon for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Flipbox widget's button URL `custom_attributes` field in all versions up to, and including, 2.1.1 due to insufficient validation of custom attribute names. Specifically, the plugin uses `esc_html()` on the attribute name which does not prevent event handler attributes (e.g., `onmouseover`, `onclick`). This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

1.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-79

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Threat summary

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

What's happening

  • PoC mentioned or linked in 1 signal
  • Technical details provided in 3 signals
  • Disclosure: 2 classified signals
  • General: 1 classified signal
  • Peaked 1d ago at 2 mentions (2026-04-18); latest day: 1
  • 3 total mentions across 2 days

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-04-18: 2Mentions · 2026-05-02: 1PoC Mentioned / Linked · 2026-05-02: 1Technical Details · 2026-04-18: 2Technical Details · 2026-05-02: 104-1805-02
Signal classification2 categories
Disclosure
266.7%
General
133.3%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-04-182
Disclosure1General1
2026-05-021
Disclosure1
Full discourse3 posts
  • Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters
    Disclosure

    Another WordPress plugin, another stored XSS. Flipbox Elementor <=2.1.1 allows authors to inject scripts. `esc_html` isn't enough. Unpatched. #WordPress #XSS #WebSec #infosec #cybersecuritynews #CVE #hackers #developers #100daysofcode More info: https://www.valtersit.com/cve/2026/04/cve-2026-6048/

    Post summary

    A stored XSS vulnerability (CVE‑2026‑6048) exists in Flipbox Elementor versions up to 2.1.1, with no patch currently available; a PoC or further details are linked.

    0003075
    973 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-6048 The Flipbox Addon for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Flipbox widget's button URL `custom_attributes` field in all v… https://www.cve.org/CVERecord?id=CVE-2026-6048

    Post summary

    The entry announces that CVE‑2026‑6048 is a stored XSS flaw in the Flipbox addon for Elementor, without indicating PoC, exploit, or patch details.

    0000062
    57.2K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2026-6048 Stored Cross-Site Scripting in Flipbox Addon for Elementor Plugin 2.1.1 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-6048

    Post summary

    The post points to CVE-2026-6048, noting a stored XSS flaw in the Flipbox Addon for Elementor 2.1.1, but offers no further details on exploitation, patches, or PoC.

    0000053
    4.0K followersView on X

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