CVE-2001-0839: ibillpm.pl in iBill password management system generates weak passwords based on a client's MASTER_ACCOUNT, wh

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HIGH 7.5MITIGATE

CVE-2001-0839 is a high-severity flaw (CVSS 7.5) affecting processing plus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ibillpm.pl in iBill password management system generates weak passwords based on a client's MASTER_ACCOUNT, which allows remote attackers to modify account information in the .htpasswd file via brute force password guessing.

Why this priority

High severity
EPSS top 6%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	7.0% (top 6%)
CISA exploited list	No
Published	2001-12-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: ibill internet billing company

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

ibill internet billing company processing plus 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 processing-plus || rpm -q processing-plus || processing-plus --version

No fixed or unaffected release known

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

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: iBill Management Script - Weak Hard-Coded Password

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-2001-0839?

processing plus: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2001-0839 being exploited?

CVE-2001-0839 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-2001-0839 affect?

CVE-2001-0839 affects processing plus. Severity is high (CVSS 7.5). ibillpm.pl in iBill password management system generates weak passwords based on a client's MASTER_ACCOUNT, which allows remote attackers to modify account information in the .htpasswd file via brute force password guessing.

How urgent is CVE-2001-0839?

Priority 55/100. High severity; EPSS top 6%: very likely to be exploited; Public exploit reference

References

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