SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-26511

The wpo365-login plugin before v11.7 for WordPress allows use of a symmetric algorithm to decrypt a JWT token.

HIGH 7.5EPSS 2.15%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.15%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The wpo365-login plugin before v11.7 for WordPress allows use of a symmetric algorithm to decrypt a JWT token. This leads to authentication bypass.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
2.15% probability · 82th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-287
Affected
wpo365/wordpress \+ azure ad \/ microsoft office 365
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 2.15%26 October 202626 October 2026

EPSS 2.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.