CVE-2026-33622Public exploitNetwork attack vector

Authenticated JavaScript execution via unguarded wait function

Published Mar 26, 2026 · Updated Mar 26, 2026

Code injection in PinchTab 0.8.3 through 0.8.5 allows remote authenticated users to execute JavaScript in browser tabs via wait requests. The POST /wait and POST /tabs/{id}/wait handlers interpolate the fn field into JavaScript passed to chromedp.Evaluate without enforcing security.allowEvaluate. A server API token and reachable tab are required; execution can read or modify page state and act within authenticated browser sessions in that tab.

CVSS severity6.1
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in PinchTab 0.8.3 through 0.8.5 allows remote authenticated users to execute JavaScript in browser tabs via wait requests. The POST /wait and POST /tabs/{id}/wait handlers interpolate the fn field into JavaScript passed to chromedp.Evaluate without enforcing security.allowEvaluate. A server API token and reachable tab are required; execution can read or modify page state and act within authenticated browser sessions in that tab.

The record

CVE
CVE-2026-33622
Published
Mar 26, 2026
Updated
Mar 26, 2026
Vendor
PinchTab
Product
PinchTab
Classifications
CWE-94, CWE-284, CWE-693, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 0.8.3, <= 0.8.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

PinchTab · PinchTabversion=>= 0.8.3, <= 0.8.5

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.1GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:H/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-284Improper Access Control
CWE-693Protection Mechanism Failure
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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