CVE-2001-0844: Vulnerability in (1) Book of guests and (2) Post it! allows remote attackers to execute arbitrary code via she

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HIGH 7.5MITIGATEMITIGATE

CVE-2001-0844 is a high-severity flaw (CVSS 7.5) affecting book of guests, post it. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in (1) Book of guests and (2) Post it! allows remote attackers to execute arbitrary code via shell metacharacters in the email parameter.

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	2001-12-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: seth leonard

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

Am I affected?

Timeline

2001-12-06 05:00 UTCPublished CVE record published
2026-06-16 21:55 UTCUpdated Record last modified

seth leonard book of guests MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy book-of-guests || rpm -q book-of-guests || book-of-guests --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

seth leonard post it MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy post-it || rpm -q post-it || post-it --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2001-0844?

book of guests: mitigate or apply the listed mitigation; post it: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2001-0844 being exploited?

CVE-2001-0844 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-2001-0844 affect?

CVE-2001-0844 affects book of guests, post it. Severity is high (CVSS 7.5). Vulnerability in (1) Book of guests and (2) Post it! allows remote attackers to execute arbitrary code via shell metacharacters in the email parameter.

How urgent is CVE-2001-0844?

Priority 49/100. High severity

References

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