CVE-2024-8274Network attack vector

Reflected script execution via unescaped timeline parameters

Published Aug 30, 2024 · Updated Apr 8, 2026

Reflected XSS in wpdevelop Booking Calendar 10.5 and earlier allows remote attackers to run scripts through crafted timeline_obj parameters. The wpbc-class-timeline_v2.php timeline renderer emits several timeline_obj-derived values without sufficient sanitization or output escaping. Execution requires a user to follow a crafted link, after which the injected script runs in the affected site's browser origin.

CVSS severity6.1
Medium
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in wpdevelop Booking Calendar 10.5 and earlier allows remote attackers to run scripts through crafted timeline_obj parameters. The wpbc-class-timeline_v2.php timeline renderer emits several timeline_obj-derived values without sufficient sanitization or output escaping. Execution requires a user to follow a crafted link, after which the injected script runs in the affected site's browser origin.

The record

CVE
CVE-2024-8274
Published
Aug 30, 2024
Updated
Apr 8, 2026
Vendor
wpdevelop
Product
Booking Calendar
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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 <=10.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

wpdevelop · Booking Calendarversion=0 <=10.5

Published CVSS scores

6.1WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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.

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')
T1203Exploitation for Client Execution

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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