CVE-2026-48494

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 73% 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: epss, secondary
Elevated
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: Elevated riskExposed: 0

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

TypeBot is a chatbot builder tool. In version 3.16.1, an authenticated user who has read access to any typebot can resume a WhatsApp preview webhook session that belongs to a different typebot by mixing an authorized typebotId and blockId and a foreign preview phone number tied to another preview session. The WhatsApp test-webhook handler authorizes the parent typebot first, but then resolves the preview chat session only by wa-preview-{phone}. As a result, an attacker can inject arbitrary webhook JSON into another workspace's WhatsApp preview session and advance its draft/unpublished flow without any access to the victim typebot. Version 3.17.0 patches the issue.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
48(Track)
EG Risk 48/100SSVC: 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
Severity71% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
27%
KEV
Not listed

Published

August 11, 2026

Last Modified

August 11, 2026

Advisory Details (4)

Auto-updated Aug 11, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github_release, github.
github Patch Available🟡 PoC Available

Cross-typebot WhatsApp preview webhook resume via global `wa-preview-{phone}` session ids · Advisory · baptisteArno/typebot.io · GitHub

https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-fqf7-mmp5-j3jq
github_release Patch Available

v3.17.0

Patch available: baptisteArno/typebot.io v3.17.0

https://github.com/baptisteArno/typebot.io/releases/tag/v3.17.0
github_pr Patch Available

🐛 Fix WhatsApp preview webhook authorization

Patch available: baptisteArno/typebot.io v3.17.0 (PR #2499 merged 2026-05-21)

https://github.com/baptisteArno/typebot.io/pull/2499
github_commit Patch Available

commit 36a618610174 (baptisteArno/typebot.io)

Patch available: baptisteArno/typebot.io v3.17.0 (contains commit 36a618610174)

https://github.com/baptisteArno/typebot.io/commit/36a618610174fd168fb255d9c8ecc0d2cf61a192

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 35× 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. 2026-08-27 20:49 UTCEG score recompute
  2. 2026-08-27 14:25 UTCEPSS rescore
  3. 2026-08-26 21:34 UTCEG score recompute
  4. 2026-08-26 14:46 UTCEPSS rescore
  5. 2026-08-25 21:58 UTCEG score recompute
  6. 2026-08-25 13:49 UTCEPSS rescore
  7. 2026-08-24 22:43 UTCEG score recompute
  8. 2026-08-24 11:07 UTCEG score recompute
  9. 2026-08-23 11:55 UTCEG score recompute
  10. 2026-08-23 00:19 UTCEPSS rescore
  11. 2026-08-22 01:07 UTCEG score recompute
  12. 2026-08-21 23:49 UTCEPSS rescore
  13. 2026-08-21 01:49 UTCEG score recompute
  14. 2026-08-20 22:55 UTCEPSS rescore
  15. 2026-08-20 02:12 UTCEG score recompute
  16. 2026-08-19 17:04 UTCEPSS rescore
  17. 2026-08-18 15:16 UTCEG score recompute
  18. 2026-08-18 13:48 UTCEPSS rescore
  19. 2026-08-17 15:29 UTCEG score recompute
  20. 2026-08-17 13:47 UTCEPSS rescore
  21. 2026-08-16 16:18 UTCEG score recompute
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-16 04:42 UTCEG score recompute
  24. 2026-08-16 02:14 UTCEPSS rescore
  25. 2026-08-15 05:31 UTCEG score recompute
Show 10 more
  1. 2026-08-15 01:30 UTCEPSS rescore
  2. 2026-08-14 06:20 UTCEG score recompute
  3. 2026-08-13 22:00 UTCEPSS rescore
  4. 2026-08-12 19:31 UTCEG score recompute
  5. 2026-08-12 13:51 UTCEPSS rescore
  6. 2026-08-11 20:19 UTCEG score recompute
  7. 2026-08-11 19:31 UTCEG score recompute
  8. 2026-08-11 18:38 UTCEG score recompute
  9. 2026-08-11 17:37 UTCEG score recompute
  10. 2026-08-11 17:35 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-48494?
CVE-2026-48494 is a high vulnerability published on August 11, 2026. TypeBot is a chatbot builder tool. In version 3.16.1, an authenticated user who has read access to any typebot can resume a WhatsApp preview webhook session that belongs to a different typebot by mixing an authorized typebotId and blockId and a foreign preview phone number tied to another preview…
When was CVE-2026-48494 disclosed?
CVE-2026-48494 was first published in the National Vulnerability Database on August 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48494 actively exploited?
CVE-2026-48494 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 73.3% of all scored CVEs.
What is the CVSS score of CVE-2026-48494?
CVE-2026-48494 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-48494?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-48494, 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

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