CVE-2026-1856Disclosure

LOWCVSS 6.4 · MEDIUM

Signal is active with 3 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

The Appointment Booking Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via custom booking field labels in all versions up to, and including, 1.4.4 due to insufficient input sanitization and output escaping. 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.

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-79

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

3 mentions across 1 observed day

What's happening

Technical details provided in 3 signals
Disclosure: 2 classified signals
General: 1 classified signal
3 total mentions across 1 day

Deep dive

Activity timeline3 mentions / 1d

Signal classification2 categories

Disclosure

266.7%

General

133.3%

Referenced assets3 URLs

By indicator

Full discourse3 posts

Infoflowcloud@infoflowcloud136d
Disclosure
🚨*CVE* CVE-2026-1856 The Appointment Booking Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via custom booking field labels in all versions up to, and including,… https://www.cve.org/CVERecord?id=CVE-2026-1856 ----- Traducción: CVE-2026-1856 El … http://infoflow.cloud`
Post summary
The tweet announces CVE‑2026‑1856, describing a stored XSS flaw in Appointment Booking Calendar for WordPress, without providing PoC, exploitation details, or mitigation information.
0000034
82 followersView on X
CVE@CVEnew136d
Disclosure
CVE-2026-1856 The Appointment Booking Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via custom booking field labels in all versions up to, and including,… https://www.cve.org/CVERecord?id=CVE-2026-1856
Post summary
The excerpt announces a stored cross‑site scripting vulnerability in the Appointment Booking Calendar plugin (CVE‑2026‑1856) affecting all versions up to the current release, without mentioning patches, exploits, or active usage.
00000255
57.6K followersView on X
Vulmon Vulnerability Feed@VulmonFeeds136d
General
CVE-2026-1856 Stored Cross-Site Scripting in Appointment Booking Calendar Plugin for WordPress 1.4.4 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-1856
Post summary
The text references a CVE detailing a stored XSS issue in a WordPress plugin and links to a vulnerability page, but provides no evidence of an exploit, PoC, active usage, or mitigations.
0000045
4.1K followersView on X

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