CVE-2021-47975 | WordPress Plugin WP Learn Manager 1.1.2 Stored XSS

WP Learn Manager 1.1.2 contains a stored cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts through the `fieldtitle` parameter. Attackers can submit POST requests to the jslm_fieldordering page with XSS payloads in the fieldtitle field to execute arbitrary JavaScript when administrators view the field ordering interface.

Published: 2026-05-16 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-47975 is rated Low Risk (24.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.21%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-47975

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.08% 0.21% +0.13%
2 2026-05-17 — 0.08% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-47975

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.1 4.0 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network.
Attack complexity (AC:L)
Exploitation conditions are straightforward and stable.
Attack requirements (AT:N)
No additional preconditions are required beyond normal reachability.
Privileges required (PR:L)
Low privileges are required.
User interaction (UI:P)
A user has to participate (for example click/open/approve).
Vulnerable system confidentiality impact (VC:N)
No confidentiality impact on the vulnerable system.
Vulnerable system integrity impact (VI:N)
No integrity impact on the vulnerable system.
Vulnerable system availability impact (VA:N)
No availability impact on the vulnerable system.
Subsequent system confidentiality impact (SC:L)
Limited confidentiality impact on subsequent systems.
Subsequent system integrity impact (SI:L)
Limited integrity impact on subsequent systems.
Subsequent system availability impact (SA:N)
No availability impact on subsequent systems.
Exploit maturity (threat) (E:X)
Not defined: no reliable threat intelligence; scoring assumes the worst case (equivalent to Attacked).
Confidentiality requirement (CR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Integrity requirement (IR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Availability requirement (AR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Modified attack vector (MAV:X)
Not defined: scoring uses the Base Attack Vector (AV).
Modified attack complexity (MAC:X)
Not defined: scoring uses the Base Attack Complexity (AC).
Modified attack requirements (MAT:X)
Not defined: scoring uses the Base Attack Requirements (AT).
Modified privileges required (MPR:X)
Not defined: scoring uses the Base Privileges Required (PR).
Modified user interaction (MUI:X)
Not defined: scoring uses the Base User Interaction (UI).
Modified vulnerable system confidentiality impact (MVC:X)
Not defined: scoring uses the Base VC metric.
Modified vulnerable system integrity impact (MVI:X)
Not defined: scoring uses the Base VI metric.
Modified vulnerable system availability impact (MVA:X)
Not defined: scoring uses the Base VA metric.
Modified subsequent system confidentiality impact (MSC:X)
Not defined: scoring uses the Base SC metric.
Modified subsequent system integrity impact (MSI:X)
Not defined: scoring uses the Base SI metric.
Modified subsequent system availability impact (MSA:X)
Not defined: scoring uses the Base SA metric.
Safety (supplemental) (S:X)
Not evaluated.
Automatable (supplemental) (AU:X)
Not evaluated.
Recovery (supplemental) (R:X)
Not evaluated.
Value density (supplemental) (V:X)
Not evaluated.
Vulnerability response effort (supplemental) (RE:X)
Not evaluated.
Provider urgency (supplemental) (U:X)
Not evaluated.
 — — [email protected]
7.2 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 2.7 [email protected]

Weakness enumeration for CVE-2021-47975

GitHub Security Advisory for CVE-2021-47975

GHSA-x5v4-ww8v-7jhc · Severity: medium — WP Learn Manager 1.1.2 contains a stored cross-site scripting vulnerability that allows...

Affected software / configurations for CVE-2021-47975

Vendor Product Version Raw CPE
wplearnmanager wp_learn_manager 1.1.2 cpe:2.3:a:wplearnmanager:wp_learn_manager:1.1.2:*:*:*:*:wordpress:*:*
wplearnmanager wp_learn_manager 1.1.5 cpe:2.3:a:wplearnmanager:wp_learn_manager:1.1.5:*:*:*:*:wordpress:*:*
wplearnmanager wp_learn_manager 1.1.4 cpe:2.3:a:wplearnmanager:wp_learn_manager:1.1.4:*:*:*:*:wordpress:*:*
wplearnmanager wp_learn_manager 1.1.3 cpe:2.3:a:wplearnmanager:wp_learn_manager:1.1.3:*:*:*:*:wordpress:*:*
wplearnmanager wp_learn_manager 1.1.1 cpe:2.3:a:wplearnmanager:wp_learn_manager:1.1.1:*:*:*:*:wordpress:*:*
wplearnmanager wp_learn_manager 1.1.0 cpe:2.3:a:wplearnmanager:wp_learn_manager:1.1.0:*:*:*:*:wordpress:*:*
wplearnmanager wp_learn_manager 1.0.9 cpe:2.3:a:wplearnmanager:wp_learn_manager:1.0.9:*:*:*:*:wordpress:*:*
wplearnmanager wp_learn_manager 1.0.8 cpe:2.3:a:wplearnmanager:wp_learn_manager:1.0.8:*:*:*:*:wordpress:*:*
wplearnmanager wp_learn_manager 1.0.7 cpe:2.3:a:wplearnmanager:wp_learn_manager:1.0.7:*:*:*:*:wordpress:*:*
wplearnmanager wp_learn_manager 1.0.6 cpe:2.3:a:wplearnmanager:wp_learn_manager:1.0.6:*:*:*:*:wordpress:*:*
wplearnmanager wp_learn_manager 1.0.5 cpe:2.3:a:wplearnmanager:wp_learn_manager:1.0.5:*:*:*:*:wordpress:*:*
wplearnmanager wp_learn_manager 1.0.4 cpe:2.3:a:wplearnmanager:wp_learn_manager:1.0.4:*:*:*:*:wordpress:*:*
wplearnmanager wp_learn_manager 1.0.3 cpe:2.3:a:wplearnmanager:wp_learn_manager:1.0.3:*:*:*:*:wordpress:*:*
wplearnmanager wp_learn_manager 1.0.2 cpe:2.3:a:wplearnmanager:wp_learn_manager:1.0.2:*:*:*:*:wordpress:*:*
wplearnmanager wp_learn_manager 1.0.0 cpe:2.3:a:wplearnmanager:wp_learn_manager:1.0.0:*:*:*:*:wordpress:*:*

References for CVE-2021-47975

cvelogic Threat Intelligence