CVE-2026-78303: joomshaper.com SP Property extension for Joomla · Insertion of Sensitive Information Into Sent Data
Affects joomshaper.com SP Property extension for JoomlaSource CVE Database V5
Not known to be exploited · CVSS 6.9 Medium.
Data as of 10/25/2026, 16:58:57 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 36% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 10 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wild: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| joomshaper.comSP Property extension for Joomla | Affected
| Fixed in– |
AI-suggested
Users should check the vendor's advisory for updates. Until a fix is available, avoid relying on client-submitted hidden fields for email routing or implement server-side validation to verify email destinations and form data integrity.
Description
A vulnerability in the SP Property extension for Joomla versions 1.0.0 through 4.1.3 allows unvalidated email destination and form manipulation in booking requests. This occurs because booking inquiries rely on client-submitted hidden fields for recipient routing, which can be manipulated to insert sensitive information into sent data. The issue is tracked as CVE-2026-78303 with a medium severity rating and a CVSS score of 6.9.
Impact
An attacker can manipulate booking request forms to alter the email recipient and potentially insert sensitive information into outgoing emails. This could lead to unauthorized disclosure of sensitive data or misrouting of booking inquiries. However, there are no known exploits in the wild at this time.
Summary
CVE-2026-78303 describes a vulnerability in the SP Property extension for Joomla (versions 1.0.0 to 4.1.3) where booking inquiries use client-submitted hidden fields to determine email recipients. This lack of validation allows an attacker to manipulate the email destination and form data, resulting in the insertion of sensitive information into sent emails. The vulnerability is categorized under CWE-201 (Insertion of Sensitive Information Into Sent Data).
Weaknesses
- CWE-201Insertion of Sensitive Information Into Sent Data (opens in a new tab)
Base weaknessOWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The code transmits data to another actor, but a portion of the data includes sensitive information that should not be accessible to that actor.