CVE-2020-25470: AntSword 2.1.8.1 contains a cross-site scripting (XSS) vulnerability in the View Site funtion

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MEDIUM 6.1DOWNGRADE

CVE-2020-25470 is a medium-severity flaw (CVSS 6.1) affecting antsword. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

AntSword 2.1.8.1 contains a cross-site scripting (XSS) vulnerability in the View Site funtion. When viewing an added site, an XSS payload can be injected in cookies view which can lead to remote code execution.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-79
Published	2020-10-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: antsword project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-10-26 14:15 UTCPublished CVE record published
2026-06-17 03:06 UTCUpdated Record last modified

antsword project antsword DOWNGRADE

Affected: 2.1.8.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.8.1

1. Check installed version

apt-cache policy antsword || rpm -q antsword || antsword --version

2. No fixed release: DOWNGRADE to a release before 2.1.8.1 (Debian / Ubuntu)

apt-cache madison antsword sudo apt install antsword=<VERSION_BEFORE_2.1.8.1> sudo apt-mark hold antsword

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list antsword sudo dnf downgrade antsword-<VERSION_BEFORE_2.1.8.1> sudo dnf versionlock add antsword

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-25470?

antsword: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-25470 being exploited?

CVE-2020-25470 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-25470 affect?

CVE-2020-25470 affects antsword. Severity is medium (CVSS 6.1). AntSword 2.1.8.1 contains a cross-site scripting (XSS) vulnerability in the View Site funtion. When viewing an added site, an XSS payload can be injected in cookies view which can lead to remote code execution.

How urgent is CVE-2020-25470?

Priority 44/100. Public exploit reference

Related CVEs

CVE-2020-18766 CRITICAL 9.6 DOWNGRADE A cross-site scripting (XSS) vulnerability AntSword v2.0.7 can remotely execute system commands.
CVE-2019-13970 MEDIUM 6.1 UPGRADE In antSword before 2.1.0, self-XSS in the database configuration leads to code execution via modules/database/

References

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