How severe is CVE-2021-32305?

CVE-2021-32305 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-2021-32305 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 87% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-32305?

CVE-2021-32305 affects Websvn. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-32305?

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-2021-32305 published?

CVE-2021-32305 was published on 2021-05-18 and last updated on 2026-06-17.

CVE-2021-32305

CVE-2021-32305 is a critical-severity vulnerability in Websvn with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 87% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 87% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Websvn
Published: 2021-05-18
Last modified: 2026-06-17

Description

WebSVN before 2.6.1 allows remote attackers to execute arbitrary commands via shell metacharacters in the search parameter.

Frequently asked questions

What is CVE-2021-32305?: WebSVN before 2.6.1 allows remote attackers to execute arbitrary commands via shell metacharacters in the search parameter.
How severe is CVE-2021-32305?: CVE-2021-32305 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-2021-32305 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 87% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-32305?: CVE-2021-32305 affects Websvn. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-32305?: 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-2021-32305 published?: CVE-2021-32305 was published on 2021-05-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:websvn:websvn:*:*:*:*:*:*:*:*

More vulnerabilities in Websvn

CVE-2011-2195 — Critical (CVSS 9.8): A flaw was found in WebSVN 2.3.2. Without prior authentication, if the 'allowDownload' option is enabled in config.php,…
CVE-2016-1236 — Medium (CVSS 6.1): Multiple cross-site scripting (XSS) vulnerabilities in (1) revision.php, (2) log.php, (3) listing.php, and (4) comp.php…
CVE-2016-2511 — Medium (CVSS 6.1): Cross-site scripting (XSS) vulnerability in WebSVN 2.3.3 and earlier allows remote attackers to inject arbitrary web…
CVE-2011-5221 — Medium (CVSS 4.3): Cross-site scripting (XSS) vulnerability in the getLog function in svnlook.php in WebSVN before 2.3.1 allows remote…
CVE-2007-3056 — Medium (CVSS 4.3): Cross-site scripting (XSS) vulnerability in filedetails.php in WebSVN 2.0rc4, and possibly earlier, allows remote…
CVE-2013-6892 — Low (CVSS 3.5): WebSVN 2.3.3 allows remote authenticated users to read arbitrary files via a symlink attack in a commit.

All CVEs affecting Websvn →

Other CWE-78 (OS Command Injection) vulnerabilities

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CVE-2026-10520 — Critical (CVSS 10.0): An OS Command Injection vulnerability in Ivanti Sentry before the R10.5.2, R10.6.2 and R10.7.1 versions allows a…

Browse all CWE-78 (OS Command Injection) vulnerabilities →