CVE-2025-51684

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreHIGH confidence

Score 6.1 from GitHub Security Advisory published 2026-07-30. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: Elevated riskExposed: 0

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

CleverTap Web SDK v1.15.1 is vulnerable to Cross Site Scripting (XSS). The application does not sanitize untrusted data received via window.postMessage before injecting it into the page DOM. An attacker can craft a malicious message that, when processed by renderCustomHtml, results in execution of arbitrary JavaScript in the context of the hosting site.

CVSS v3
6.1
EG Score
6.1(high)
EG Risk
43(Track)
EG Risk 43/100SSVC: 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
Severity61% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
KEV
Not listed

Published

July 30, 2026

Last Modified

July 31, 2026

Advisory Details (1)

Auto-updated Jul 31, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

[Security Vulnerability] DOM-XSS via postMessage in CleverTap Web SDK · Issue #416 · CleverTap/clevertap-web-sdk · GitHub

https://github.com/CleverTap/clevertap-web-sdk/issues/416

Vendor Advisories for CVE-2025-51684(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 20× in last 7d / 68× 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. 2026-08-19 21:42 UTCEG score recompute
  2. 2026-08-19 21:42 UTCGHSA enrichment
  3. 2026-08-19 17:03 UTCEPSS rescore
  4. 2026-08-18 22:48 UTCEG score recompute
  5. 2026-08-18 22:48 UTCGHSA enrichment
  6. 2026-08-18 13:47 UTCEPSS rescore
  7. 2026-08-17 23:48 UTCEG score recompute
  8. 2026-08-17 23:48 UTCGHSA enrichment
  9. 2026-08-17 13:46 UTCEPSS rescore
  10. 2026-08-17 00:56 UTCEG score recompute
  11. 2026-08-17 00:56 UTCGHSA enrichment
  12. 2026-08-16 14:55 UTCEPSS rescore
  13. 2026-08-16 02:13 UTCEPSS rescore
  14. 2026-08-16 02:05 UTCGHSA enrichment
  15. 2026-08-15 03:14 UTCEG score recompute
  16. 2026-08-15 03:14 UTCGHSA enrichment
  17. 2026-08-15 01:29 UTCEPSS rescore
  18. 2026-08-14 04:22 UTCEG score recompute
  19. 2026-08-14 04:22 UTCGHSA enrichment
  20. 2026-08-13 21:59 UTCEPSS rescore
  21. 2026-08-13 05:30 UTCEG score recompute
  22. 2026-08-13 05:30 UTCGHSA enrichment
  23. 2026-08-12 13:50 UTCEPSS rescore
  24. 2026-08-12 13:50 UTCEPSS rescore
  25. 2026-08-12 06:39 UTCEG score recompute
Show 43 more
  1. 2026-08-12 06:39 UTCGHSA enrichment
  2. 2026-08-11 13:42 UTCEPSS rescore
  3. 2026-08-11 07:48 UTCEG score recompute
  4. 2026-08-11 07:48 UTCGHSA enrichment
  5. 2026-08-10 23:59 UTCEPSS rescore
  6. 2026-08-10 08:56 UTCEG score recompute
  7. 2026-08-10 08:56 UTCGHSA enrichment
  8. 2026-08-09 13:46 UTCEPSS rescore
  9. 2026-08-09 10:05 UTCEG score recompute
  10. 2026-08-09 10:05 UTCGHSA enrichment
  11. 2026-08-08 16:36 UTCEPSS rescore
  12. 2026-08-08 11:14 UTCEG score recompute
  13. 2026-08-08 11:14 UTCGHSA enrichment
  14. 2026-08-07 16:26 UTCEPSS rescore
  15. 2026-08-07 12:22 UTCEG score recompute
  16. 2026-08-07 12:22 UTCGHSA enrichment
  17. 2026-08-06 13:46 UTCEPSS rescore
  18. 2026-08-06 13:31 UTCEG score recompute
  19. 2026-08-06 13:31 UTCGHSA enrichment
  20. 2026-08-05 19:16 UTCEPSS rescore
  21. 2026-08-05 14:39 UTCGHSA enrichment
  22. 2026-08-04 15:48 UTCEG score recompute
  23. 2026-08-04 15:48 UTCGHSA enrichment
  24. 2026-08-04 15:09 UTCEPSS rescore
  25. 2026-08-04 15:09 UTCEPSS rescore
  26. 2026-08-04 10:37 UTCEPSS rescore
  27. 2026-08-03 16:57 UTCEG score recompute
  28. 2026-08-03 16:57 UTCGHSA enrichment
  29. 2026-08-03 10:35 UTCEPSS rescore
  30. 2026-08-02 18:06 UTCEG score recompute
  31. 2026-08-02 18:06 UTCGHSA enrichment
  32. 2026-08-02 02:26 UTCEPSS rescore
  33. 2026-08-01 19:15 UTCEG score recompute
  34. 2026-08-01 19:15 UTCGHSA enrichment
  35. 2026-08-01 04:15 UTCEPSS rescore
  36. 2026-07-31 20:24 UTCEG score recompute
  37. 2026-07-31 20:24 UTCGHSA enrichment
  38. 2026-07-31 19:48 UTCEG score recompute▲ 6.10
  39. 2026-07-31 19:48 UTCGHSA enrichment
  40. 2026-07-31 19:48 UTCMITRE cvelistV5CVSS v3 → 6.1 · severity → MEDIUM
  41. 2026-07-30 20:32 UTCNVD update
  42. 2026-07-30 20:07 UTCEG score recompute
  43. 2026-07-30 20:05 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-51684?
CVE-2025-51684 is a medium vulnerability published on July 30, 2026. CleverTap Web SDK v1.15.1 is vulnerable to Cross Site Scripting (XSS). The application does not sanitize untrusted data received via window.postMessage before injecting it into the page DOM. An attacker can craft a malicious message that, when processed by renderCustomHtml, results in execution of…
When was CVE-2025-51684 disclosed?
CVE-2025-51684 was first published in the National Vulnerability Database on July 30, 2026, with the most recent update on July 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-51684 actively exploited?
CVE-2025-51684 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 87.5% of all scored CVEs.
What is the CVSS score of CVE-2025-51684?
CVE-2025-51684 has a CVSS v3.1 base score of 6.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2025-51684?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-51684, 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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