CVE-2020-7809

Script execution via unvalidated SAB album content

Published May 15, 2020 · Updated Aug 4, 2024

DOM-based XSS in ESTsoft ALSong 3.46 and earlier allows remote attackers to execute script by inducing a user to open a SAB album file. The published record attributes the flaw to improper input validation in DOM processing but does not identify the exact SAB parser source, DOM sink, or missing sanitization step. Exploitation requires delivery of a crafted SAB file and user interaction, enabling script to read or alter data in the application's DOM context.

CVSS severity4.4
Medium
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DOM-based XSS in ESTsoft ALSong 3.46 and earlier allows remote attackers to execute script by inducing a user to open a SAB album file. The published record attributes the flaw to improper input validation in DOM processing but does not identify the exact SAB parser source, DOM sink, or missing sanitization step. Exploitation requires delivery of a crafted SAB file and user interaction, enabling script to read or alter data in the application's DOM context.

The record

CVE
CVE-2020-7809
Published
May 15, 2020
Updated
Aug 4, 2024
Vendor
ESTsoft
Product
ALSong
Classifications
CWE-79, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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=3.46 <=3.47

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

ESTsoft · ALSongversion=3.46 <=3.47

Published CVSS scores

4.4KrCERT/CCCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS: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)
Vectorlocal
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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