5.3

CVE-2026-16773: quantumcloud wpbot – ai chatbot for live support, lead generation, ai services

CVSS: 5.3v3.1MediumDeferred
Published 28-07-2026Last modified 28-07-2026
Open JSON

Vulnerability summary

CVE-2026-16773 is a medium (CVSS 5.3) vulnerability in quantumcloud wpbot – ai chatbot for live support, lead generation, ai services. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39.6% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.47%
0%100%
Low · +0.20 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 28-07-2026
    PublishedVulnerability first disclosed.
  2. 28-07-2026
    Last modifiedVulnerability information updated.

Description

The WPBot – AI ChatBot for Live Support, Lead Generation, AI Services plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 8.5.9 via the wpbot_send_email_transcript_free. This makes it possible for unauthenticated attackers to exfiltrate full chat transcripts and associated user PII — including names, email addresses, and phone numbers — stored in the wpbot_user and wpbot_conversation tables to an attacker-controlled email address.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.47%

Chance of exploitation in the next 30 days

Percentile

40%

Versus all other CVEs

30-day change

+0.20 pp

From 0.27% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.47%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Quantumcloud1 product
Wordpress1 product
  • chatbot≤ 8.5.9 (fixed in 8.6.0)

2 vendors · 2 products

References

7 links