CVE-2020-8771: wordpress wp-time-capsule Improper Authentication
CVSS: 9.8v3.1CriticalModified
Published 06-02-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-8771 is a critical (CVSS 9.8) Improper Authentication vulnerability in wordpress wp-time-capsule. EPSS estimates a 46.45% chance of exploitation in the next 30 days, higher than 98.8% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 1.21.16.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
46.45%
0%100%
High · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 06-02-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
The Time Capsule plugin before 1.21.16 for WordPress has an authentication bypass. Any request containing IWP_JSON_PREFIX causes the client to be logged in as the first account on the list of administrator accounts.
CVSS metrics
3 scores · 2 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- wordfenceSource9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
46.45%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
0.00 pp
From 46.45% on 20-09-2026
20-09-202620-10-2026
EPSS score46.45%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (webarxsecurity.com)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-287Improper AuthenticationWhen an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
- CWE-288Authentication Bypass Using an Alternate Path or ChannelThe product requires authentication, but the product has an alternate path or channel that does not require authentication.
Affected systems
Wordpress1 product
- wp-time-capsule< 1.21.16
Wptimecapsule1 product
- wp_time_capsule< 1.21.16
2 vendors · 2 products
References
3 links- www.webarxsecurity.com/vulnerability-infinitewp-client-wp-time-capsule/X Refsource MISCExploitThird Party Advisory