How severe is CVE-2018-1000501?

CVE-2018-1000501 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-1000501 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1000501?

CVE-2018-1000501 affects Instant-update Instant Update Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1000501?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2018-1000501 published?

CVE-2018-1000501 was published on 2018-06-26 and last updated on 2026-06-17.

CVE-2018-1000501

CVE-2018-1000501 is a critical-severity vulnerability in Instant-update Instant Update Cms with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-640.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-640
Affected product: Instant-update Instant Update Cms
Published: 2018-06-26
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2018-1000501?: 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.
How severe is CVE-2018-1000501?: CVE-2018-1000501 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-1000501 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1000501?: CVE-2018-1000501 affects Instant-update Instant Update Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1000501?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-1000501 published?: CVE-2018-1000501 was published on 2018-06-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:instant-update:instant_update_cms:*:*:*:*:*:*:*:*

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