CVE-2018-1000501: Instant Update CMS contains a Password Reset Vulnerability vulnerability in /iu-application/controllers/admini

Q: How do I fix CVE-2018-1000501?

instant update cms: upgrade to 0.3.3. Exact commands for each OS are on this page.

Q: Is CVE-2018-1000501 being exploited?

CVE-2018-1000501 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-1000501 affect?

CVE-2018-1000501 affects instant update cms. Severity is critical (CVSS 9.8). Instant Update CMS contains a Password Reset Vulnerability vulnerability in /iu-application/controllers/administration/auth.php that can result in Account Tackover. This attack appear to be exploitable via network connectivity. This vulnera

Q: How urgent is CVE-2018-1000501?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2018-1000501 is a critical-severity flaw (CVSS 9.8) affecting instant update cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Instant Update CMS contains a Password Reset Vulnerability vulnerability in /iu-application/controllers/administration/auth.php that can result in Account Tackover. This attack appear to be exploitable via network connectivity. This vulnerability appears to have been fixed in v0.3.3.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-640
Published	2018-06-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: instant-update

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

Am I affected?

Timeline

2018-06-26 16:29 UTCPublished CVE record published
2026-06-17 01:32 UTCUpdated Record last modified

instant-update instant update cms UPGRADE

Affected: < 0.3.3

Fixed in: 0.3.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy instant-update-cms || rpm -q instant-update-cms || instant-update-cms --version

2. UPGRADE to 0.3.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade instant-update-cms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade instant-update-cms

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2018-1000501?

instant update cms: upgrade to 0.3.3. Exact commands for each OS are on this page.

Is CVE-2018-1000501 being exploited?

CVE-2018-1000501 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-2018-1000501 affect?

CVE-2018-1000501 affects instant update cms. Severity is critical (CVSS 9.8). Instant Update CMS contains a Password Reset Vulnerability vulnerability in /iu-application/controllers/administration/auth.php that can result in Account Tackover. This attack appear to be exploitable via network connectivity. This vulnera

How urgent is CVE-2018-1000501?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

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