CVE-2020-4949

mediumpriority · attend · 45EPSS 0.048 · 92 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

4.81% (92nd) EPSS

CVSS 6.4 · medium

Is it mine?

8 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 192025.

cvss

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

8.2

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.4–8.2

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 4.9

v3.18.2highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Lprimary · NVD / NIST USexploitability 3.9 · impact 4.2

v3.08.2highCVSS:3.0/C:H/A:L/S:U/UI:N/PR:N/AV:N/AC:L/I:N/E:U/RC:C/RL:Osecondary · ENISA EU

v3.08.2highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Lsecondary · psirt@us.ibm.com USexploitability 3.9 · impact 4.2

v3.17.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-611USprimary

exploits (1)

Public proof-of-concept and weaponised exploit code.

Anuhimen/CVE-2020-4949-AnalysisAnuhimen/CVE-2020-4949-AnalysisPoC · poc_in_github

affected products (8)

Products and version ranges known to be affected.

IBM WebSphere Application Server≤ 8.0enisa_euvdEU
IBM WebSphere Application Server≤ 8.5enisa_euvdEU
IBM WebSphere Application Server≤ 7.0enisa_euvdEU
IBM WebSphere Application Server≤ 9.0enisa_euvdEU
ibm websphere application server7.0.0.0 → 7.0.0.45nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
ibm websphere application server8.0.0.0 → 8.0.0.15nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
ibm websphere application server8.5.0.0 → 8.5.5.18nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*
ibm websphere application server9.0.0.0 → 9.0.5.6nvdUScpe:2.3:a:ibm:websphere_application_server:*:*:*:*:*:*:*:*

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 2021-01-26modified 2026-06-17

related (1,520)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2025-58360US	critical9.8OT critical	61.2% (99th)	KEV	2025-11-25
GeoServer is an open source server that allows users to share and edit geospatial data. From version 2.26.0 to before 2.26.2 and before 2.25.6, an XML External Entity (XXE) vulnera…
CVE-2025-2776US	critical9.8OT critical	64.7% (99th)	KEV	2025-05-07
SysAid On-Prem versions <= 23.3.40 are vulnerable to an unauthenticated XML External Entity (XXE) vulnerability in the Server URL processing functionality, allowing for administrat…
CVE-2025-2775US	high7.5OT critical	42.6% (99th)	KEV	2025-05-07
SysAid On-Prem versions <= 23.3.40 are vulnerable to an unauthenticated XML External Entity (XXE) vulnerability in the Checkin processing functionality, allowing for administrator…
CVE-2024-34102US	—OT critical	100.0% (100th)	KEV	2024-06-13
Adobe Commerce versions 2.4.7, 2.4.6-p5, 2.4.5-p7, 2.4.4-p8 and earlier are affected by an Improper Restriction of XML External Entity Reference ('XXE') vulnerability that could re…
CVE-2023-45727US	high7.5OT critical	4.82% (92nd)	KEV	2023-10-18
Proself Enterprise/Standard Edition Ver5.62 and earlier, Proself Gateway Edition Ver1.65 and earlier, and Proself Mail Sanitize Edition Ver1.08 and earlier allow a remote unauthent…

+1515 more

references (15)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan