CVE-2026-15359

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-08-07. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

The Templately WordPress plugin before 3.7.1 does not have an authorisation check on one of its request handlers, allowing unauthenticated attackers to overwrite the administrator's stored cloud service connection with an account under their control, disconnecting the legitimate administrator and redirecting the site's cloud template library to attacker-controlled content.

CVSS v3
6.5
EG Score
6.5(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
11%
KEV
Not listed

Published

August 7, 2026

Last Modified

August 7, 2026

Advisory Details (1)

Auto-updated Aug 7, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Templately < 3.7.1 – Unauthenticated Administrator Templately Cloud Connection Overwrite | CVE 2026-15359 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/d4749a25-f3fa-4908-9532-3ae7c1c38a58/

Vendor Advisories for CVE-2026-15359(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 / 41× 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. 2026-08-20 11:45 UTCEG score recompute
  2. 2026-08-20 11:45 UTCGHSA enrichment
  3. 2026-08-19 17:03 UTCEPSS rescore
  4. 2026-08-19 12:16 UTCEG score recompute
  5. 2026-08-19 12:16 UTCGHSA enrichment
  6. 2026-08-18 13:48 UTCEPSS rescore
  7. 2026-08-18 12:48 UTCEG score recompute
  8. 2026-08-18 12:48 UTCGHSA enrichment
  9. 2026-08-17 13:47 UTCEPSS rescore
  10. 2026-08-17 13:11 UTCEG score recompute
  11. 2026-08-17 13:11 UTCGHSA enrichment
  12. 2026-08-16 14:56 UTCEPSS rescore
  13. 2026-08-16 13:43 UTCEG score recompute
  14. 2026-08-16 13:43 UTCGHSA enrichment
  15. 2026-08-16 02:14 UTCEPSS rescore
  16. 2026-08-15 14:15 UTCEG score recompute
  17. 2026-08-15 14:15 UTCGHSA enrichment
  18. 2026-08-15 01:30 UTCEPSS rescore
  19. 2026-08-14 14:46 UTCGHSA enrichment
  20. 2026-08-13 15:18 UTCGHSA enrichment
  21. 2026-08-12 15:46 UTCEG score recompute
  22. 2026-08-12 15:46 UTCGHSA enrichment
  23. 2026-08-12 13:50 UTCEPSS rescore
  24. 2026-08-11 16:18 UTCEG score recompute
  25. 2026-08-11 16:18 UTCGHSA enrichment
Show 16 more
  1. 2026-08-11 13:42 UTCEPSS rescore
  2. 2026-08-11 00:00 UTCEPSS rescore
  3. 2026-08-10 16:50 UTCGHSA enrichment
  4. 2026-08-09 17:22 UTCEG score recompute
  5. 2026-08-09 17:22 UTCGHSA enrichment
  6. 2026-08-09 13:46 UTCEPSS rescore
  7. 2026-08-08 17:55 UTCEG score recompute
  8. 2026-08-08 17:55 UTCGHSA enrichment
  9. 2026-08-08 16:37 UTCEPSS rescore
  10. 2026-08-07 18:26 UTCGHSA enrichment
  11. 2026-08-07 17:47 UTCEG score recompute▲ 6.50
  12. 2026-08-07 17:47 UTCGHSA enrichment
  13. 2026-08-07 17:47 UTCMITRE cvelistV5CVSS v3 → 6.5 · severity → MEDIUM
  14. 2026-08-07 06:20 UTCNVD update
  15. 2026-08-07 06:03 UTCEG score recompute
  16. 2026-08-07 06:03 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15359?
CVE-2026-15359 is a medium vulnerability published on August 7, 2026. The Templately WordPress plugin before 3.7.1 does not have an authorisation check on one of its request handlers, allowing unauthenticated attackers to overwrite the administrator's stored cloud service connection with an account under their control, disconnecting the legitimate administrator and…
When was CVE-2026-15359 disclosed?
CVE-2026-15359 was first published in the National Vulnerability Database on August 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15359 actively exploited?
CVE-2026-15359 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 89.4% of all scored CVEs.
What is the CVSS score of CVE-2026-15359?
CVE-2026-15359 has a CVSS v3.1 base score of 6.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-15359?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15359, 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-2026-15359

Explore →

Is Your Infrastructure Affected by CVE-2026-15359?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs