CVE-2026-5513Network attack vector

Unauthenticated stored XSS via customer-name cookie

Published Jun 13, 2026 · Updated Jun 13, 2026

Stored XSS in Bookly 27.2 and earlier allows remote attackers to execute scripts through a crafted customer-name cookie. Bookly reads the bookly-customer-full-name cookie as remembered customer data and later renders it without sufficient input sanitization or output escaping. The default-disabled “Remember personal information in cookies” setting must be enabled, and the injected script runs when a user opens the affected page.

CVSS severity7.2
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Bookly 27.2 and earlier allows remote attackers to execute scripts through a crafted customer-name cookie. Bookly reads the bookly-customer-full-name cookie as remembered customer data and later renders it without sufficient input sanitization or output escaping. The default-disabled “Remember personal information in cookies” setting must be enabled, and the injected script runs when a user opens the affected page.

The record

CVE
CVE-2026-5513
Published
Jun 13, 2026
Updated
Jun 13, 2026
Vendor
Ladela Interactive
Product
Bookly
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 13, 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 <=27.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ladela Interactive · Booklyversion=0 <=27.2

Published CVSS scores

7.2WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A: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.

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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')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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