CVE-2021-44140

Jspwiki vulnerability

CVSS

9.1

EPSS

6.2%

EPSS pct

93th

Exploited

No known

Remote attackers may delete arbitrary files in a system hosting a JSPWiki instance, versions up to 2.11.0.M8, by using a carefuly crafted http request on logout, given that those files are reachable to the user running the JSPWiki instance. Apache JSPWiki users should upgrade to 2.11.0 or later.

Affected vendor

Apache

Affected product

Jspwiki

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Weakness type (CWE)

CWE-276 — Incorrect Default Permissions

Published

2021-11-24

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to integrity, high impact to availability.

Its EPSS score of 6.2% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2021-44140

Confirm whether Apache Jspwiki is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-44140.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-44140

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-44140 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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