CVE-2021-44478

mediumpriority · track · 24EPSS 0.008 · 55 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.76% (55th) EPSS

CVSS 4.3 · medium

Is it mine?

11 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-28

A vulnerability has been identified in Polarion ALM (All versions < V21 R2 P2), Polarion WebClient for SVN (All versions). A cross-site scripting is present due to improper neutralization of data sent to the web page through the SVN WebClient in the affected product. An attacker could exploit this to execute arbitrary code and extract sensitive information by sending a specially crafted link to users with administrator privileges.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedPolarion ALMsiemens_psirt
Update to V21 R2 P2 or later version
https://support.sw.siemens.com/knowledge-base/PL8613685
FixedPolarion ALMcisa_csaf_ot
Update to V21 R2 P2 or later version
https://support.sw.siemens.com/knowledge-base/PL8613685
MitigationPolarion ALMsiemens_psirt
Do not open links from untrusted sources while working on Polarion Subversion webclient
MitigationPolarion WebClient for SVNsiemens_psirt
Do not open links from untrusted sources while working on Polarion Subversion webclient
MitigationPolarion ALMcisa_csaf_ot
Do not open links from untrusted sources while working on Polarion Subversion webclient
MitigationPolarion WebClient for SVNcisa_csaf_ot
Do not open links from untrusted sources while working on Polarion Subversion webclient
No fix plannedPolarion WebClient for SVNsiemens_psirt
Currently no fix is planned
No fix plannedPolarion WebClient for SVNcisa_csaf_ot
Currently no fix is planned

cvss

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

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:Csecondary · CISA US

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimaryCWE-79USCWE-79US

affected products (11)

Products and version ranges known to be affected.

Polarion ALMall versionscisa_csaf_otUS
Polarion WebClient for SVNall versionscisa_csaf_otUS
Siemens Polarion ALM< V21_R2_P2cisa_csaf_otUS
Siemens Polarion WebClient for SVN≤ vers:all/*cisa_csaf_otUS
Siemens Polarion ALMAll versions → V21 R2 P2enisa_euvdEU
Siemens Polarion WebClient for SVN≤ All versionsenisa_euvdEU
siemens polarion alm< 21.0nvdUScpe:2.3:a:siemens:polarion_alm:*:*:*:*:*:*:*:*
siemens polarion alm= 21.0nvdUScpe:2.3:a:siemens:polarion_alm:*:*:*:*:*:*:*:*
siemens polarion subversion webclientall versionsnvdUScpe:2.3:a:siemens:polarion_subversion_webclient:*:*:*:*:*:*:*:*
Siemens Polarion ALM< V21 R2 P2siemens_psirtDE
Siemens Polarion WebClient for SVN≤ vers:all/*siemens_psirtDE

advisories (2)

Vendor and ecosystem advisories describing this.

SSA-562051SSA-562051: Cross-Site Scripting Vulnerability in Polarion ALM2022-03-08csaf · siemens_psirtDE
The Subversion Webclient in Polarion ALM contains a cross-site scripting vulnerability, that could be triggered by an attacker by sending crafted links to an administrator user of Polarion ALM. Siemens has released an update for the Subversion Webclient in Polarion ALM and recommends to update to the latest version.
ICSA-22-069-08Siemens Polarion ALM2022-03-08icsa · cisa_csaf_otUS
The Subversion Webclient in Polarion ALM contains a cross-site scripting vulnerability, that could be triggered by an attacker by sending crafted links to an administrator user of Polarion ALM. Siemens has released an update for the Subversion Webclient in Polarion ALM and recommends to update to the latest version.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd siemens_psirt NVD CVE.org MITRE

published 2022-03-08modified 2026-06-17

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+53083 more

references (7)

External citations — patches, advisories, analysis.

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