The WP-UserOnline plugin for WordPress has multiple Stored Cross-Site Scripting vulnerabilities in versions up to, and including 2.88.0. This is due to the fact that all fields in the "Naming Conventions" section do not properly sanitize user input, nor escape it on output. This makes it possible for authenticated attackers, with administrative privileges, to inject JavaScript code into the setting that will execute whenever a user accesses the injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
CVE-2022-2941
“—” beside the score: it is equal to NVD's CVSS score.
This medium-severity CVE scores 5.5 under NVD CVSS v3. EPSS exploit probability: 7.3% (94th percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 4.8 is lower than this score; a lower GitHub score revises it only when its advisory is newer than the CVE record's last change, and this advisory (published 2022-09-07) is not newer than that change (2026-04-08), so it does not.
- Public exploit code is available (Exploit-DB, marked verified by Exploit-DB)
A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).
- CVSS v3
- 5.5
- EG Score
- 5.5MEDIUMmedium confidence
- EG Risk
- 51EG Risk 51/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity55% × 45%Impact severity (EG Severity): CVSS 5.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation65% × 40%EchelonGraph's fixed weight for EG-KEV Tier 2 (Weaponized): a constant, not a probability.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation. - EPSS PROB
- 7.3%
- EPSS %ILE
- 94th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (5.5): severity, escalated by confirmed exploitation. This CVE's 5.5 is its impact severity (EG Severity), not escalated.
- EG Severity
- 5.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
- EG Likelihood
- 7.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).
A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
September 6, 2022
Last Modified
April 8, 2026
References (5)
- security@wordfence · CVE Programhttps://github.com/lesterchan/wp-useronline/commit/59c76b20e4e27489f93dee4ef1254d6204e08b3cPatch
- security@wordfence · CVE Programhttps://packetstormsecurity.com/files/168479/wpuseronline2880-xss.txtExploit · Third Party Advisory · VDB Entry
- security@wordfence · CVE Programhttps://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2770235%40wp-useronline&new=2770235%40wp-useronline&sfp_email=&sfph_mail=Patch
- security@wordfence · CVE Programhttps://www.wordfence.com/threat-intel/vulnerabilities/id/5c4fb14c-de6d-4247-8f83-050f1350f6a2?source=cveThird Party Advisory
- security@wordfence · CVE Programhttps://www.wordfence.com/vulnerability-advisories/#CVE-2022-2941Third Party Advisory
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 33× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 95 of 231 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 5 repeat rows among the latest 100 are merged into the row they repeat. The 136 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-10-22 16:30 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-21 16:28 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-20 16:29 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-19 16:28 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-18 16:28 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-18 08:37 UTCEG score recompute
- 2026-10-17 16:29 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-16 16:34 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-15 16:28 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-14 16:29 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-13 16:29 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-12 18:55 UTCEG score recompute
- 2026-10-12 16:30 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-11 23:20 UTCEG score recompute
- 2026-10-11 13:44 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-10 19:56 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-09 20:04 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-08 16:40 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-07 23:45 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-07 19:35 UTCOSV refresh
- 2026-10-06 15:14 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-05 17:40 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-04 23:19 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-03 14:23 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-10-02 16:23 UTCEPSS rescoreEPSS 7.3% · 94th percentile
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- 2026-09-30 15:54 UTCEG score recompute
- 2026-09-30 15:00 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-09-29 15:16 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-09-28 13:48 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-09-27 13:42 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-09-26 15:54 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-09-26 00:22 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-09-24 14:00 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-09-23 13:45 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-09-22 14:44 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-09-20 20:13 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-09-19 15:38 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-09-18 19:24 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-09-18 01:36 UTCOSV refresh
- 2026-09-16 14:05 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-09-15 03:06 UTCEPSS rescoreEPSS 7.3% · 93rd percentile
- 2026-09-13 16:44 UTCEPSS rescoreEPSS 7.3% · 93rd percentile
- 2026-09-12 14:57 UTCEPSS rescoreEPSS 7.3% · 93rd percentile
- 2026-09-11 14:49 UTCEPSS rescoreEPSS 7.3% · 93rd percentile
- 2026-09-11 09:33 UTCEPSS rescoreEPSS 7.3% · 93rd percentile
- 2026-09-08 21:57 UTCEPSS rescoreEPSS 7.3% · 93rd percentile
- 2026-09-07 15:58 UTCEPSS rescoreEPSS 7.3% · 93rd percentile
- 2026-09-06 13:45 UTCEPSS rescoreEPSS 7.3% · 93rd percentile
- 2026-09-05 15:25 UTCEPSS rescoreEPSS 7.3% · 94th percentile
- 2026-09-04 13:57 UTCEPSS rescoreEPSS 7.3% · 93rd percentile
- 2026-09-04 05:04 UTCEPSS rescoreEPSS 7.3% · 93rd percentile
- 2026-09-02 14:09 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-09-01 13:51 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-30 19:14 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-30 02:13 UTCOSV refresh
- 2026-08-30 01:19 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-28 21:38 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-27 14:22 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-26 14:43 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-25 13:46 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-24 14:13 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-23 00:16 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-21 23:46 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-20 22:52 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-19 17:01 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-18 13:45 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-17 13:44 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-16 14:53 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-16 02:11 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-15 01:27 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-13 21:57 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-13 13:21 UTCOSV refresh
- 2026-08-12 13:48 UTCEPSS rescoreEPSS 5.6% · 92nd percentile
- 2026-08-11 13:38 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-08-09 13:44 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-08-08 16:34 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-08-07 16:24 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-08-06 13:44 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-08-05 19:15 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-08-04 15:07 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-08-04 10:35 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-08-03 10:33 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-08-02 02:24 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-08-01 04:13 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-07-30 16:25 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-07-30 01:28 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-07-28 20:21 UTCOSV refresh
- 2026-07-28 15:33 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-07-25 14:15 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-07-24 14:15 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-07-23 14:16 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-07-23 02:10 UTCEG score recompute
- 2026-07-22 22:57 UTCEG score recompute▲ 0.70
- 2026-07-22 14:06 UTCEPSS rescoreEPSS 5.3% · 91st percentile
- 2026-07-21 15:22 UTCEPSS rescoreEPSS 5.3% · 91st percentile
Publicly available exploits
(1 reference)Public exploit code is referenced for this CVE (1 Exploit-DB entry). No release with the fix is confirmed, so defenders should restrict or isolate affected systems accordingly until one is applied.
- Exploit-DBEDB-51020✓ verifiedPublished Sep 23, 2022
Wordpress Plugin WP-UserOnline 2.88.0 - Stored Cross Site Scripting (XSS)
Open source ↗
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2022-2941?
When was the CVE record for CVE-2022-2941 published?
Is CVE-2022-2941 actively exploited?
What is the CVSS score of CVE-2022-2941?
How do I remediate CVE-2022-2941?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2022-2941
Is Your Infrastructure Affected by CVE-2022-2941?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.