CVE-2021-26293
CVE-2021-26293 is a critical-severity vulnerability in Afterlogic Aurora 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-22.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 7% (93rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Afterlogic Aurora
- Published:
- Last modified:
Description
An issue was discovered in AfterLogic Aurora through 8.5.3 and WebMail Pro through 8.5.3, when DAV is enabled. They allow directory traversal to create new files (such as an executable file under the web root). This is related to DAVServer.php in 8.x and DAV/Server.php in 7.x.
Frequently asked questions
- What is CVE-2021-26293?
- An issue was discovered in AfterLogic Aurora through 8.5.3 and WebMail Pro through 8.5.3, when DAV is enabled. They allow directory traversal to create new files (such as an executable file under the web root). This is related to DAVServer.php in 8.x and DAV/Server.php in 7.x.
- How severe is CVE-2021-26293?
- CVE-2021-26293 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-2021-26293 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-26293?
- CVE-2021-26293 primarily affects Afterlogic Aurora. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-26293?
- 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-2021-26293 published?
- CVE-2021-26293 was published on 2021-03-04 and last updated on 2026-06-17.
References
Affected products (2)
- cpe:2.3:a:afterlogic:aurora:*:*:*:*:*:*:*:*
- cpe:2.3:a:afterlogic:webmail_pro:*:*:*:*:*:*:*:*
More vulnerabilities in Afterlogic Aurora
- CVE-2021-26294 — High (CVSS 7.5): An issue was discovered in AfterLogic Aurora through 7.7.9 and WebMail Pro through 7.7.9. They allow directory…
- CVE-2019-19129 — Medium (CVSS 6.1): Afterlogic WebMail Pro 8.3.11, and WebMail in Afterlogic Aurora 8.3.11, allows Remote Stored XSS via an attachment name.
- CVE-2019-16238 — Medium (CVSS 6.1): Afterlogic Aurora through 8.3.9-build-a3 has XSS that can be leveraged for session hijacking by retrieving the session…
- CVE-2017-14597 — Medium (CVSS 4.8): AdminPanel in AfterLogic WebMail 7.7 and Aurora 7.7.5 has XSS via the txtDomainName field to…
All CVEs affecting Afterlogic Aurora →
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