CVE-2026-78303

MEDIUMPre-NVD 6.96.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.9 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 83% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cna:joomla, epss
Trending — 3 sources updated this week
6.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.9Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Joomla Extension - joomshaper.com - Unvalidated Email Destination & Form Manipulation in Booking Requests in SP Property < 4.1.4 - Booking inquiries previously relied on client-submitted hidden fields for recipient routing, allowing potential email manipulation.

CVSS v3
6.9
EG Score
6.9(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity69% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

September 10, 2026

Last Modified

September 11, 2026

Advisory Details (1)

Auto-updated Sep 10, 2026
No patch confirmed yet.
generic

SP Property - Real Estate extension for Joomla! - JoomShaper

https://www.joomshaper.com/joomla-extensions/sp-property

Vendor Advisories for CVE-2026-78303(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 19× in last 7d / 33× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-19 09:44 UTCEG score recompute
  2. 2026-09-19 09:44 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 11:50 UTCEG score recompute
  5. 2026-09-18 11:50 UTCGHSA enrichment
  6. 2026-09-17 13:59 UTCGHSA enrichment
  7. 2026-09-16 16:08 UTCEG score recompute
  8. 2026-09-16 16:08 UTCGHSA enrichment
  9. 2026-09-16 14:08 UTCEPSS rescore
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-15 18:16 UTCEG score recompute
  12. 2026-09-15 18:16 UTCGHSA enrichment
  13. 2026-09-15 03:12 UTCEPSS rescore
  14. 2026-09-15 03:12 UTCEPSS rescore
  15. 2026-09-14 20:12 UTCGHSA enrichment
  16. 2026-09-13 22:21 UTCEG score recompute
  17. 2026-09-13 22:20 UTCGHSA enrichment
  18. 2026-09-13 00:29 UTCEG score recompute
  19. 2026-09-13 00:29 UTCGHSA enrichment
  20. 2026-09-12 02:37 UTCEG score recompute
  21. 2026-09-12 02:37 UTCGHSA enrichment
  22. 2026-09-11 14:53 UTCEPSS rescore
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-11 04:45 UTCEG score recompute
  25. 2026-09-11 04:45 UTCGHSA enrichment
Show 8 more
  1. 2026-09-10 15:18 UTCGHSA enrichment
  2. 2026-09-10 13:37 UTCEG score recompute
  3. 2026-09-10 13:37 UTCGHSA enrichment
  4. 2026-09-10 12:45 UTCEG score recompute
  5. 2026-09-10 12:45 UTCGHSA enrichment
  6. 2026-09-10 10:38 UTCEG score recompute
  7. 2026-09-10 10:00 UTCEG score recompute
  8. 2026-09-10 09:59 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-78303?
CVE-2026-78303 is a medium vulnerability published on September 10, 2026. Joomla Extension - joomshaper.com - Unvalidated Email Destination & Form Manipulation in Booking Requests in SP Property < 4.1.4 - Booking inquiries previously relied on client-submitted hidden fields for recipient routing, allowing potential email manipulation.
When was CVE-2026-78303 disclosed?
CVE-2026-78303 was first published in the National Vulnerability Database on September 10, 2026, with the most recent update on September 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78303 actively exploited?
CVE-2026-78303 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 82.9% of all scored CVEs.
What is the CVSS score of CVE-2026-78303?
CVE-2026-78303 has a CVSS v4.0 base score of 6.9 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-78303?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78303, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-78303

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