CVE-2021-26601
CVE-2021-26601 is a high-severity vulnerability in Impresscms with a CVSS 3.x base score of 8.1. 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-22.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- CVSS v2: 5.5
- EPSS exploit prediction: 3% (88th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Impresscms
- Published:
- Last modified:
Description
ImpressCMS before 1.4.3 allows libraries/image-editor/image-edit.php image_temp Directory Traversal.
Frequently asked questions
- What is CVE-2021-26601?
- ImpressCMS before 1.4.3 allows libraries/image-editor/image-edit.php image_temp Directory Traversal.
- How severe is CVE-2021-26601?
- CVE-2021-26601 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
- Is CVE-2021-26601 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-26601?
- CVE-2021-26601 affects Impresscms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-26601?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-26601 published?
- CVE-2021-26601 was published on 2022-03-28 and last updated on 2026-06-17.
References
- http://karmainsecurity.com/KIS-2022-02
- http://packetstormsecurity.com/files/166402/ImpressCMS-1.4.2-Path-Traversal.html
- http://seclists.org/fulldisclosure/2022/Mar/44
- https://hackerone.com/reports/1081878
Affected products (1)
- cpe:2.3:a:impresscms:impresscms:*:*:*:*:*:*:*:*
More vulnerabilities in Impresscms
- CVE-2008-3453 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in ImpressCMS 1.0 have unknown impact and attack vectors, related to…
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- CVE-2021-26600 — Critical (CVSS 9.8): ImpressCMS before 1.4.3 has plugins/preloads/autologin.php type confusion with resultant Authentication Bypass (!=…
- CVE-2021-26599 — Critical (CVSS 9.8): ImpressCMS before 1.4.3 allows include/findusers.php groups SQL Injection.
- CVE-2022-24977 — Critical (CVSS 9.8): ImpressCMS before 1.4.2 allows unauthenticated remote code execution via ...../// directory traversal in origName or…
- CVE-2010-4271 — High (CVSS 7.5): SQL injection vulnerability in ImpressCMS before 1.2.3 RC2 allows remote attackers to execute arbitrary SQL commands…
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