CVE-2026-82642Network attack vectorHinoki check available

Arbitrary code execution via iframe srcdoc sanitization bypass

Published Aug 30, 2026 · Updated Aug 30, 2026

Cross-site scripting in Readest before 0.11.16 allows attackers to execute arbitrary code after a user opens a crafted EPUB file. The EPUB sanitizer treats an iframe's srcdoc value as opaque, allowing embedded script to survive filtering and execute when the iframe renders. Opening attacker-controlled EPUB content is required; same-origin script access exposes the Tauri IPC commands permitted to the application.

CVSS severity8.8
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
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Summary

What happened

Cross-site scripting in Readest before 0.11.16 allows attackers to execute arbitrary code after a user opens a crafted EPUB file. The EPUB sanitizer treats an iframe's srcdoc value as opaque, allowing embedded script to survive filtering and execute when the iframe renders. Opening attacker-controlled EPUB content is required; same-origin script access exposes the Tauri IPC commands permitted to the application.

The record

CVE
CVE-2026-82642
Published
Aug 30, 2026
Updated
Aug 30, 2026
Vendor
Bilingify LLC
Product
Readest
Classifications
CWE-79, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 30, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=0 <0.11.16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Bilingify LLC · Readestversion=0 <0.11.16

Published CVSS scores

8.8JFROGCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

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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