How severe is CVE-2017-1000153?

CVE-2017-1000153 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-2017-1000153 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-1000153?

CVE-2017-1000153 primarily affects Mahara. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-1000153?

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-2017-1000153 published?

CVE-2017-1000153 was published on 2017-11-03 and last updated on 2026-06-17.

CVE-2017-1000153

CVE-2017-1000153 is a critical-severity vulnerability in Mahara 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-732.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Mahara
Published: 2017-11-03
Last modified: 2026-06-17

Description

Mahara 15.04 before 15.04.10 and 15.10 before 15.10.6 and 16.04 before 16.04.4 are vulnerable to incorrect access control after the password reset link is sent via email and then user changes default email, Mahara fails to invalidate old link.Consequently the link in email can be used to gain access to the user's account.

Frequently asked questions

What is CVE-2017-1000153?: Mahara 15.04 before 15.04.10 and 15.10 before 15.10.6 and 16.04 before 16.04.4 are vulnerable to incorrect access control after the password reset link is sent via email and then user changes default email, Mahara fails to invalidate old link.Consequently the link in email can be used to gain access to the user's account.
How severe is CVE-2017-1000153?: CVE-2017-1000153 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-2017-1000153 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-1000153?: CVE-2017-1000153 primarily affects Mahara. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-1000153?: 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-2017-1000153 published?: CVE-2017-1000153 was published on 2017-11-03 and last updated on 2026-06-17.

References

https://bugs.launchpad.net/mahara/+bug/1577251

Affected products (24)

cpe:2.3:a:mahara:mahara:15.04:rc1:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04:rc2:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.0:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.1:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.2:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.3:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.4:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.5:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.6:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.7:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.8:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.04.9:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:16.04:rc1:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:16.04:rc2:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:16.04.0:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:16.04.1:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:16.04.2:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:16.04.3:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.10.0:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.10.1:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.10.2:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.10.3:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.10.4:*:*:*:*:*:*:*
cpe:2.3:a:mahara:mahara:15.10.5:*:*:*:*:*:*:*

More vulnerabilities in Mahara

CVE-2022-45134 — Critical (CVSS 9.8): Mahara 21.10 before 21.10.6, 22.04 before 22.04.4, and 22.10 before 22.10.1 deserializes user input unsafely during…
CVE-2022-44544 — Critical (CVSS 9.8): Mahara 21.04 before 21.04.7, 21.10 before 21.10.5, 22.04 before 22.04.3, and 22.10 before 22.10.0 potentially allow a…
CVE-2021-40849 — Critical (CVSS 9.8): In Mahara before 20.04.5, 20.10.3, 21.04.2, and 21.10.0, the account associated with a web services token is vulnerable…
CVE-2017-1000154 — Critical (CVSS 9.8): Mahara 15.04 before 15.04.8 and 15.10 before 15.10.4 and 16.04 before 16.04.2 are vulnerable to some authentication…
CVE-2017-1000152 — Critical (CVSS 9.8): Mahara 15.04 before 15.04.7 and 15.10 before 15.10.3 running PHP 5.3 are vulnerable to one user being logged in as…
CVE-2024-39335 — Critical (CVSS 9.1): Supported versions of Mahara 24.04 before 24.04.1 and 23.04 before 23.04.6 are vulnerable to information being…

All CVEs affecting Mahara →

Other CWE-732 (Incorrect Permission Assignment for Critical Resource) vulnerabilities

CVE-2026-9508 — Critical (CVSS 10.0): Incorrect permission settings on a critical resource in Suprema BioStar 2 (versions 2.9.3 through 2.9.11) that allow…
CVE-2025-14988 — Critical (CVSS 10.0): A security issue has been identified in ibaPDA that could allow unauthorized actions on the file system under certain…
CVE-2025-69426 — Critical (CVSS 10.0): The Ruckus vRIoT IoT Controller firmware versions prior to 3.0.0.0 (GA) contain hardcoded credentials for an operating…
CVE-2025-12004 — Critical (CVSS 10.0): Incorrect Permission Assignment for Critical Resource vulnerability in The Wikimedia Foundation Mediawiki - Lockdown…
CVE-2014-125121 — Critical (CVSS 10.0): Array Networks vAPV (version 8.3.2.17) and vxAG (version 9.2.0.34) appliances are affected by a privilege escalation…
CVE-2025-46093 — Critical (CVSS 9.9): LiquidFiles before 4.1.2 supports FTP SITE CHMOD for mode 6777 (setuid and setgid), which allows FTPDrop users to…

Browse all CWE-732 (Incorrect Permission Assignment for Critical Resource) vulnerabilities →