CVE-2001-1161: Cross-site scripting (CSS) vulnerability in Lotus Domino 5.0.6 allows remote attackers to execute script on ot

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HIGH 7.5DOWNGRADE

CVE-2001-1161 is a high-severity flaw (CVSS 7.5) affecting domino r5 server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (CSS) vulnerability in Lotus Domino 5.0.6 allows remote attackers to execute script on other web clients via a URL that ends in Javascript, which generates an error message that does not quote the resulting script.

Why this priority

High severity

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	3.6% (top 10%)
CISA exploited list	No
Published	2001-07-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: lotus

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2001-07-02 04:00 UTCPublished CVE record published
2026-06-16 21:55 UTCUpdated Record last modified

lotus domino r5 server DOWNGRADE

Affected: 5.0.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.0.6

1. Check installed version

apt-cache policy domino-r5-server || rpm -q domino-r5-server || domino-r5-server --version

2. No fixed release: DOWNGRADE to a release before 5.0.6 (Debian / Ubuntu)

apt-cache madison domino-r5-server sudo apt install domino-r5-server=<VERSION_BEFORE_5.0.6> sudo apt-mark hold domino-r5-server

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

dnf --showduplicates list domino-r5-server sudo dnf downgrade domino-r5-server-<VERSION_BEFORE_5.0.6> sudo dnf versionlock add domino-r5-server

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-2001-1161?

domino r5 server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2001-1161 being exploited?

CVE-2001-1161 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-2001-1161 affect?

CVE-2001-1161 affects domino r5 server. Severity is high (CVSS 7.5). Cross-site scripting (CSS) vulnerability in Lotus Domino 5.0.6 allows remote attackers to execute script on other web clients via a URL that ends in Javascript, which generates an error message that does not quote the resulting script.

How urgent is CVE-2001-1161?

Priority 49/100. High severity

Related CVEs

CVE-2001-0604 MEDIUM 5.0 UPGRADE Lotus Domino R5 prior to 5.0.7 allows a remote attacker to create a denial of service via URL requests (>8Kb)
CVE-2001-0603 MEDIUM 5.0 UPGRADE Lotus Domino R5 prior to 5.0.7 allows a remote attacker to create a denial of service via repeatedly sending l
CVE-2001-0602 MEDIUM 5.0 UPGRADE Lotus Domino R5 prior to 5.0.7 allows a remote attacker to create a denial of service via repeated (>400) URL
CVE-2001-0601 MEDIUM 5.0 UPGRADE Lotus Domino R5 prior to 5.0.7 allows a remote attacker to create a denial of service via HTTP requests contai
CVE-2001-0600 MEDIUM 5.0 UPGRADE Lotus Domino R5 prior to 5.0.7 allows a remote attacker to create a denial of service via repeated URL request

References

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