CVE-2023-30533

highpriority · track · 41EPSS 0.010 · 62 %ileexploit · PoCDEEUNLRUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · PoC

Likely / severe?

0.99% (62nd) EPSS

CVSS 7.8 · high

Is it mine?

5 products

Check your exposure

Who says so?

7 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

SheetJS Community Edition before 0.19.3 allows Prototype Pollution via a crafted file. In other words. 0.19.2 and earlier are affected, whereas 0.19.3 and later are unaffected.

cvss

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

8.8

010

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

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.18.8highAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondaryexploitability 1.8 · impact 5.9

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · OSV

v3.17.4highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1321USprimaryCWE-1321USCWE-1321US

exploits (2)

Public proof-of-concept and weaponised exploit code.

BenEdridge/CVE-2023-30533There were no proper POCs for CVE-2023-30533 so I made one. (Reported by Vsevolod Kokorin)PoC · poc_in_github
weareu/xlsxSheetJS xlsx 0.18.5 fork with CVE-2023-30533 and CVE-2024-22363 fixesPoC · poc_in_github

affected products (5)

Products and version ranges known to be affected.

HCL BigFix WebUIall versionscert_bundDEcpe:/a:hcltech:bigfix:webui
n/a n/a≤ n/aenisa_euvdEU
Sheetjs LLC SheetJS Community Edition≤ 0.19.2fstec_bduRU
sheetjs sheetjs< 0.19.3nvdUScpe:2.3:a:sheetjs:sheetjs:*:*:*:*:*:*:*:*
npm xlsxall versionsosvUSpkg:npm/xlsx

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2024-0333Kwetsbaarheden verholpen in SAP productenNL2024-08-13csaf · ncsc_nlNL
SAP heeft kwetsbaarheden verholpen in diverse producten als SAP Business Objects, SAP HANA, Netweaver en Document Builder.
WID-SEC-W-2023-1800HCL BigFix: Mehrere SchwachstellenDeutsch2023-07-18csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in HCL BigFix WebUI ausnutzen, um seine Privilegien zu erweitern, Dateien zu manipulieren, Informationen offenzulegen, Sicherheitsvorkehrungen zu umgehen oder einen Denial of Service Zustand herbeizuführen.
GHSA-4r6h-8v6p-xvw6Prototype Pollution in sheetJS2023-04-24ghsa · osvUS
All versions of SheetJS CE through 0.19.2 are vulnerable to "Prototype Pollution" when reading specially crafted files. Workflows that do not read arbitrary files (for example, exporting data to spreadsheet files) are unaffected. A non-vulnerable version cannot be found via npm, as the repository hosted on GitHub and the npm package `xlsx` are no longer maintained. Version 0.19.3 can be downloaded via https://cdn.sheetjs.com/.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd osv ncsc_nl NVD CVE.org MITRE

published 2023-04-24modified 2026-06-17

related (708)

Related entries.

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Parse Server is an open source http web server backend. In versions prior to 4.10.7 there is a Remote Code Execution (RCE) vulnerability in Parse Server. This vulnerability affects…
CVE-2019-11358US	medium6.1	86.8% (100th)	Exploit	2019-04-20
jQuery before 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles jQuery.extend(true, {}, ...) because of Object.prototype pollution. If an unsanitized source ob…
CVE-2020-7774US	critical9.8	69.4% (99th)	—	2020-11-17
The package y18n before 3.2.2, 4.0.1 and 5.0.5, is vulnerable to Prototype Pollution.

+703 more

references (11)

External citations — patches, advisories, analysis.

scry

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