01 Record
CVE-2021-20784
HTTP header injection vulnerability in Everything version 1.0, 1.1, and 1.2 except the Lite version may allow a remote attacker to inject an arbitrary script or alter the website that uses the
MediumPUBLISHEDCNA: jpcert
CNA base score6.1 CVSS v3.xCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
02 Description
HTTP header injection vulnerability in Everything version 1.0, 1.1, and 1.2 except the Lite version may allow a remote attacker to inject an arbitrary script or alter the website that uses the
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.11% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 65.9% of scored records. A rank, not a probability.
- NVD base score
- 6.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-07-14 01:20Z5 YR AGO
- Last updated
- 2024-12-03 01:14Z1 YR AGO
- Reserved
- 2020-12-17
- Assigning CNA
- jpcert
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.1)
- CNA CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-644Improper Neutralization of HTTP Headers for Scripting SyntaxVariant
- Data version
- 5.1
- Document digest
- f1aa5c9d129c1153cb1ddae26d0a589205b16a6f1db5699df0d9e9ff7bcabeaa
05 Affected products
VendorProductVersionsPlatforms
voidtoolsEverythingall versions of 1.0 (Everything 1.0 series) except the Lite version, all versions of 1.1 (Everything 1.1 series) except the Lite version, all versions of 1.2 (Everything 1.2 series) except the Lite version—
06 References
- www.voidtools.comhttps://www.voidtools.com/downloads/
- www.voidtools.comhttps://www.voidtools.com/
- jvn.jphttps://jvn.jp/en/jp/JVN68971465/
- jvn.jphttps://jvn.jp/en/jp/JVN68971465/index.html