CVE-2024-8521Public exploitNetwork attack vector

Script execution via unsanitized manual parameter

Published Sep 7, 2024 · Updated Sep 9, 2024

Reflected XSS in Wavelog Live QSO 1.8.0 and earlier allows remote attackers to run script in a user's browser via manual. The Qso::index handler processes the manual GET parameter through a legacy input-cleaning path that fails to neutralize crafted content before the Live QSO response uses it. A victim must open an attacker-controlled URL; the injected script then executes in that browser under the application's origin.

CVSS severity6.1
Medium
EPSS probability0.57%
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 Wavelog Live QSO 1.8.0 and earlier allows remote attackers to run script in a user's browser via manual. The Qso::index handler processes the manual GET parameter through a legacy input-cleaning path that fails to neutralize crafted content before the Live QSO response uses it. A victim must open an attacker-controlled URL; the injected script then executes in that browser under the application's origin.

The record

CVE
CVE-2024-8521
Published
Sep 7, 2024
Updated
Sep 9, 2024
Vendor
Wavelog
Product
Wavelog
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 7, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2024Record 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=1.0
  2. Affected versionversion=1.1
  3. Affected versionversion=1.2
  4. Affected versionversion=1.3
  5. Affected versionversion=1.4
  6. Affected versionversion=1.5
  7. Affected versionversion=1.6
  8. Affected versionversion=1.7
  9. Affected versionversion=1.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Wavelog · Wavelogversion=1.0; version=1.1; version=1.2; version=1.3; version=1.4; version=1.5; version=1.6; version=1.7; version=1.8

Published CVSS scores

5.0VulDBAV:N/AC:L/Au:N/C:N/I:P/A:N
6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
4.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
6.1NVDCVSS: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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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