VulnSocial

CVE-2026-26862Disclosure(clevertap / clevertap_web_sdk)

LOWCVSS 8.3 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

CleverTap Web SDK version 1.15.2 and earlier is vulnerable to DOM-based Cross-Site Scripting (XSS) via window.postMessage in the Visual Builder module. The origin validation in src/modules/visualBuilder/pageBuilder.js (lines 56-60) uses the includes() method to verify the originUrl contains "dashboard.clevertap.com", which can be bypassed by an attacker using a crafted subdomain

clevertap CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Patch / fix
Exploit / PoC references
Other references
Weakness type (CWE)
CWE-79CWE-829

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • clevertap_web_sdk

Threat summary

  • 4 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 4 signals
  • Disclosure: 4 classified signals
  • Peaked 1d ago at 3 mentions (2026-02-27); latest day: 1
  • 4 total mentions across 2 days

Affected systems

Vendors
clevertap
Products
clevertap_web_sdk

Deep dive

Activity timeline4 mentions / 2d
01223Mentions · 2026-02-27: 3Mentions · 2026-03-04: 1Technical Details · 2026-02-27: 3Technical Details · 2026-03-04: 102-2703-04
Signal classification1 categories
Disclosure
4100.0%
Referenced assets4 URLs
Classification over time
DateTotalLabels
2026-02-273
Disclosure3
2026-03-041
Disclosure1
Full discourse4 posts
  • CRAC Learning - Tech@cracbot
    Disclosure

    CVE-2026-26862 (CVSS:8.3, HIGH) is Analyzed. CleverTap Web SDK version 1.15.2 and earlier is vulnerable to DOM-based Cross-Site Scripting (XSS) via window.postMessag..https://nvd.nist.gov/vuln/detail/CVE-2026-26862 #cybersecurityawareness #cybersecurity #CVE #infosec #hacker #nvd #mitre

    Post summary

    CVE-2026-26862 is a high‑severity DOM‑based XSS vulnerability in CleverTap Web SDK versions 1.15.2 and earlier, as identified by NVD.

    0000040
    173 followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-26862 DOM-Based XSS in CleverTap Web SDK 1.15.2 via Improper Origin Validation https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-26862

    Post summary

    The text reports a DOM-based XSS vulnerability (CVE-2026-26862) in CleverTap Web SDK 1.15.2 caused by improper origin validation, with no PoC, exploit, or patch details provided.

    0000077
    4.0K followersView on X
  • The Hacker Wire@TheHackerWire
    Disclosure

    🟠 CVE-2026-26862 - High CleverTap Web SDK version 1.15.2 and earlier is vulnerable to DOM-based Cross-Site Scripting (XSS) via window.postMessage in the Visual Builder module. The origin validation in src/modules/vi... https://www.thehackerwire.com/vulnerability/CVE-2026-26862/ https://t.co/ZBF071XpG7

    Post summary

    The tweet announces that CleverTap Web SDK versions 1.15.2 and earlier are vulnerable to DOM-based XSS via window.postMessage in the Visual Builder module, but provides no PoC, exploit code, patch, or active exploitation details.

    0000071
    119 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-26862 CleverTap Web SDK version 1.15.2 and earlier is vulnerable to DOM-based Cross-Site Scripting (XSS) via window.postMessage in the Visual Builder module. The origin val… https://www.cve.org/CVERecord?id=CVE-2026-26862

    Post summary

    CVE-2026-26862 is a DOM‑based XSS flaw in CleverTap Web SDK versions 1.15.2 and earlier, triggered via window.postMessage in the Visual Builder module; the post only describes the vulnerability, not any PoC, exploit, patch, or active exploitation.

    00000107
    56.6K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appclevertapclevertap_web_sdk---

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