CVE-2020-35590

mediumpriority · attend · 51EPSS 0.043 · 91 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

4.35% (91st) EPSS

CVSS 5 · medium

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

LimitLoginAttempts.php in the limit-login-attempts-reloaded plugin before 2.17.4 for WordPress allows a bypass of (per IP address) rate limits because the X-Forwarded-For header can be forged. When the plugin is configured to accept an arbitrary header for the client source IP address, a malicious user is not limited to perform a brute force attack, because the client IP header accepts any arbitrary string. When randomizing the header input, the login count does not ever reach the maximum allowed retries.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 5–9.8

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.3criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-307USprimary

exploits (1)

Public proof-of-concept and weaponised exploit code.

N4nj0/CVE-2020-35590Brute-force tool for WordPress Plugin Limit Login Attempts Reloaded >=2.13.0 - Login Limit Bypass (CVE-2020-35590)PoC · poc_in_github

affected products (2)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
limitloginattempts limit login attempts reloaded< 2.17.4nvdUScpe:2.3:a:limitloginattempts:limit_login_attempts_reloaded:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2020-12-21modified 2026-06-17

related (825)

Related entries.

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+820 more

references (7)

External citations — patches, advisories, analysis.

scry

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