CVE-2025-40704: Cross-Site Scripting (XSS) vulnerability in OpenAtlas v8.9.0 from the Austrian Centre for Digital Humanities a

Routine

MEDIUM 5.4WATCHLISTDOWNGRADE

CVE-2025-40704 is a medium-severity flaw (CVSS 5.4) affecting openatlas. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-Site Scripting (XSS) vulnerability in OpenAtlas v8.9.0 from the Austrian Centre for Digital Humanities and Cultural Heritage (ACDH-CH), due to inadequate validation of user input when a POST request is sent. The vulnerabilities could allow a remote user to send specially crafted queries to an authenticated user and steal their session cookie details, via the "/insert/edition" petition, "name" parameter.

Why this priority

On your watchlist

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 87%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-08-29
Last modified	2026-10-18

Publisher (CNA): Spanish National Cybersecurity Institute, S.A. (INCIBE) · Vendor: craws

Last updated 2026-10-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-29 12:15 UTCPublished CVE record published
2026-10-18 21:10 UTCUpdated Record last modified

craws openatlas DOWNGRADE

Affected: 8.9.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.9.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 8.9.0 (Debian / Ubuntu)

apt-cache madison openatlas sudo apt install openatlas=<VERSION_BEFORE_8.9.0> sudo apt-mark hold openatlas

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

dnf --showduplicates list openatlas sudo dnf downgrade openatlas-<VERSION_BEFORE_8.9.0> sudo dnf versionlock add openatlas

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-2025-40704?

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

Is CVE-2025-40704 being exploited?

CVE-2025-40704 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-2025-40704 affect?

CVE-2025-40704 affects openatlas. Severity is medium (CVSS 5.4). Cross-Site Scripting (XSS) vulnerability in OpenAtlas v8.9.0 from the Austrian Centre for Digital Humanities and Cultural Heritage (ACDH-CH), due to inadequate validation of user input when a POST request is sent. The vulnerabilities could

How urgent is CVE-2025-40704?

Priority 27/100. On your watchlist

Related CVEs

CVE-2025-40702 MEDIUM 5.4 DOWNGRADE Cross-Site Scripting (XSS) vulnerability in OpenAtlas v8.9.0 from the Austrian Centre for Digital Humanities a
CVE-2025-40703 MEDIUM 5.4 DOWNGRADE Cross-Site Scripting (XSS) vulnerability in OpenAtlas v8.9.0 from the Austrian Centre for Digital Humanities a
CVE-2025-40705 MEDIUM 5.4 DOWNGRADE Cross-Site Scripting (XSS) vulnerability in OpenAtlas v8.9.0 from the Austrian Centre for Digital Humanities a
CVE-2025-40706 MEDIUM 5.4 DOWNGRADE Cross-Site Scripting (XSS) vulnerability in OpenAtlas v8.9.0 from the Austrian Centre for Digital Humanities a
CVE-2025-40707 MEDIUM 5.4 DOWNGRADE Cross-Site Scripting (XSS) vulnerability in OpenAtlas v8.9.0 from the Austrian Centre for Digital Humanities a

References

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